Finding the Third Proportional to 7,139,545 and 10,876,663

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139,545 : 10,876,663 = 10,876,663 : x
2. Step 2: Convert to fraction form
   7,139,545/10,876,663 = 10,876,663/x
3. Step 3: Cross multiply
   7,139,545x = 10,876,663 × 10,876,663
4. Step 4: Simplify right side
   7,139,545x = 118,301,798,015,569
5. Step 5: Solve for x
   x = 118,301,798,015,569/7,139,545
6. Step 6: Final answer
   x = 16,569,935.20