Finding the Third Proportional to 5,516,730 and 8,610,372

Step by Step Solution

1. Step 1: Write the proportion equation
   5,516,730 : 8,610,372 = 8,610,372 : x
2. Step 2: Convert to fraction form
   5,516,730/8,610,372 = 8,610,372/x
3. Step 3: Cross multiply
   5,516,730x = 8,610,372 × 8,610,372
4. Step 4: Simplify right side
   5,516,730x = 74,138,505,978,384
5. Step 5: Solve for x
   x = 74,138,505,978,384/5,516,730
6. Step 6: Final answer
   x = 13,438,849.82