Finding the Third Proportional to 6,721,818 and 10,087,641

Step by Step Solution

1. Step 1: Write the proportion equation
   6,721,818 : 10,087,641 = 10,087,641 : x
2. Step 2: Convert to fraction form
   6,721,818/10,087,641 = 10,087,641/x
3. Step 3: Cross multiply
   6,721,818x = 10,087,641 × 10,087,641
4. Step 4: Simplify right side
   6,721,818x = 101,760,500,944,881
5. Step 5: Solve for x
   x = 101,760,500,944,881/6,721,818
6. Step 6: Final answer
   x = 15,138,836.09