Finding the Third Proportional to 8,527,390 and 13,120,441.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,527,390 : 13,120,441.50 = 13,120,441.50 : x
2. Step 2: Convert to fraction form
   8,527,390/13,120,441.50 = 13,120,441.50/x
3. Step 3: Cross multiply
   8,527,390x = 13,120,441.50 × 13,120,441.50
4. Step 4: Simplify right side
   8,527,390x = 172,145,985,154,922.25
5. Step 5: Solve for x
   x = 172,145,985,154,922.25/8,527,390
6. Step 6: Final answer
   x = 20,187,417.86