Finding the Third Proportional to 8,499,088.13 and 18,210,871.69

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499,088.13 : 18,210,871.69 = 18,210,871.69 : x
2. Step 2: Convert to fraction form
   8,499,088.13/18,210,871.69 = 18,210,871.69/x
3. Step 3: Cross multiply
   8,499,088.13x = 18,210,871.69 × 18,210,871.69
4. Step 4: Simplify right side
   8,499,088.13x = 331,635,847,618,589.12
5. Step 5: Solve for x
   x = 331,635,847,618,589.12/8,499,088.13
6. Step 6: Final answer
   x = 39,020,168.13