The girls love brave guyes. Any girl would love the guy who propose her would have the guts to propose in front of thousands of people listening over the radio waves.
If you know she listens to the radio at a certain time everyday, making a dedication will work charms with her. Call your local FM radio station, one you know she will be tuning into. What would you say on the radio? That is clearly up to you. But it should be something memorable and sweet. Dedicate you beloved, her fevorite romantic song. Have the radio play you and your song, together, and a sweet proposal following before or after the song. Then have her phone in after the song to give her answer over the radio waves. She definatly answer YES