Finding the Third Proportional to 8,769,991.50 and 18,499,711.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,769,991.50 : 18,499,711.50 = 18,499,711.50 : x
2. Step 2: Convert to fraction form
   8,769,991.50/18,499,711.50 = 18,499,711.50/x
3. Step 3: Cross multiply
   8,769,991.50x = 18,499,711.50 × 18,499,711.50
4. Step 4: Simplify right side
   8,769,991.50x = 342,239,325,583,232.25
5. Step 5: Solve for x
   x = 342,239,325,583,232.25/8,769,991.50
6. Step 6: Final answer
   x = 39,023,906.19