Finding the Third Proportional to 455,553,781.50 and 680,345,468.25

Step by Step Solution

1. Step 1: Write the proportion equation
   455,553,781.50 : 680,345,468.25 = 680,345,468.25 : x
2. Step 2: Convert to fraction form
   455,553,781.50/680,345,468.25 = 680,345,468.25/x
3. Step 3: Cross multiply
   455,553,781.50x = 680,345,468.25 × 680,345,468.25
4. Step 4: Simplify right side
   455,553,781.50x = 462,869,956,168,311,744
5. Step 5: Solve for x
   x = 462,869,956,168,311,744/455,553,781.50
6. Step 6: Final answer
   x = 1,016,059,958.16