Finding the Third Proportional to 465,039,165.50 and 688,841,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   465,039,165.50 : 688,841,340.50 = 688,841,340.50 : x
2. Step 2: Convert to fraction form
   465,039,165.50/688,841,340.50 = 688,841,340.50/x
3. Step 3: Cross multiply
   465,039,165.50x = 688,841,340.50 × 688,841,340.50
4. Step 4: Simplify right side
   465,039,165.50x = 474,502,392,381,836,928
5. Step 5: Solve for x
   x = 474,502,392,381,836,928/465,039,165.50
6. Step 6: Final answer
   x = 1,020,349,311.59