Finding the Third Proportional to 7,139,531 and 10,876,643

Step by Step Solution

1. Step 1: Write the proportion equation
   7,139,531 : 10,876,643 = 10,876,643 : x
2. Step 2: Convert to fraction form
   7,139,531/10,876,643 = 10,876,643/x
3. Step 3: Cross multiply
   7,139,531x = 10,876,643 × 10,876,643
4. Step 4: Simplify right side
   7,139,531x = 118,301,362,949,449
5. Step 5: Solve for x
   x = 118,301,362,949,449/7,139,531
6. Step 6: Final answer
   x = 16,569,906.76