Finding the Third Proportional to 8,431,290 and 18,141,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,431,290 : 18,141,358.50 = 18,141,358.50 : x
2. Step 2: Convert to fraction form
   8,431,290/18,141,358.50 = 18,141,358.50/x
3. Step 3: Cross multiply
   8,431,290x = 18,141,358.50 × 18,141,358.50
4. Step 4: Simplify right side
   8,431,290x = 329,108,888,225,522.25
5. Step 5: Solve for x
   x = 329,108,888,225,522.25/8,431,290
6. Step 6: Final answer
   x = 39,034,227.05