Finding the Third Proportional to 455,553,783 and 680,345,470.50

Step by Step Solution

1. Step 1: Write the proportion equation
   455,553,783 : 680,345,470.50 = 680,345,470.50 : x
2. Step 2: Convert to fraction form
   455,553,783/680,345,470.50 = 680,345,470.50/x
3. Step 3: Cross multiply
   455,553,783x = 680,345,470.50 × 680,345,470.50
4. Step 4: Simplify right side
   455,553,783x = 462,869,959,229,866,368
5. Step 5: Solve for x
   x = 462,869,959,229,866,368/455,553,783
6. Step 6: Final answer
   x = 1,016,059,961.53