Finding the Third Proportional to 456,921,663 and 696,095,878.50

Step by Step Solution

1. Step 1: Write the proportion equation
   456,921,663 : 696,095,878.50 = 696,095,878.50 : x
2. Step 2: Convert to fraction form
   456,921,663/696,095,878.50 = 696,095,878.50/x
3. Step 3: Cross multiply
   456,921,663x = 696,095,878.50 × 696,095,878.50
4. Step 4: Simplify right side
   456,921,663x = 484,549,472,064,686,784
5. Step 5: Solve for x
   x = 484,549,472,064,686,784/456,921,663
6. Step 6: Final answer
   x = 1,060,465,089.10