Finding the Third Proportional to 719,687,521 and 1,105,720,334

Step by Step Solution

1. Step 1: Write the proportion equation
   719,687,521 : 1,105,720,334 = 1,105,720,334 : x
2. Step 2: Convert to fraction form
   719,687,521/1,105,720,334 = 1,105,720,334/x
3. Step 3: Cross multiply
   719,687,521x = 1,105,720,334 × 1,105,720,334
4. Step 4: Simplify right side
   719,687,521x = 1,222,617,457,021,071,616
5. Step 5: Solve for x
   x = 1,222,617,457,021,071,616/719,687,521
6. Step 6: Final answer
   x = 1,698,817,085.67