Finding the Third Proportional to 2,571,519,528 and 5,581,418,688

Step by Step Solution

1. Step 1: Write the proportion equation
   2,571,519,528 : 5,581,418,688 = 5,581,418,688 : x
2. Step 2: Convert to fraction form
   2,571,519,528/5,581,418,688 = 5,581,418,688/x
3. Step 3: Cross multiply
   2,571,519,528x = 5,581,418,688 × 5,581,418,688
4. Step 4: Simplify right side
   2,571,519,528x = 31,152,234,570,755,641,344
5. Step 5: Solve for x
   x = 31,152,234,570,755,641,344/2,571,519,528
6. Step 6: Final answer
   x = 12,114,329,380.57