Finding the Third Proportional to 3,581,280 and 5,553,468

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581,280 : 5,553,468 = 5,553,468 : x
2. Step 2: Convert to fraction form
   3,581,280/5,553,468 = 5,553,468/x
3. Step 3: Cross multiply
   3,581,280x = 5,553,468 × 5,553,468
4. Step 4: Simplify right side
   3,581,280x = 30,841,006,827,024
5. Step 5: Solve for x
   x = 30,841,006,827,024/3,581,280
6. Step 6: Final answer
   x = 8,611,727.32