Finding the Third Proportional to 655,309,321.50 and 1,407,869,781

Step by Step Solution

1. Step 1: Write the proportion equation
   655,309,321.50 : 1,407,869,781 = 1,407,869,781 : x
2. Step 2: Convert to fraction form
   655,309,321.50/1,407,869,781 = 1,407,869,781/x
3. Step 3: Cross multiply
   655,309,321.50x = 1,407,869,781 × 1,407,869,781
4. Step 4: Simplify right side
   655,309,321.50x = 1,982,097,320,252,987,904
5. Step 5: Solve for x
   x = 1,982,097,320,252,987,904/655,309,321.50
6. Step 6: Final answer
   x = 3,024,674,386.92