Finding the Third Proportional to 8,527,441 and 13,120,521

Step by Step Solution

1. Step 1: Write the proportion equation
   8,527,441 : 13,120,521 = 13,120,521 : x
2. Step 2: Convert to fraction form
   8,527,441/13,120,521 = 13,120,521/x
3. Step 3: Cross multiply
   8,527,441x = 13,120,521 × 13,120,521
4. Step 4: Simplify right side
   8,527,441x = 172,148,071,311,441
5. Step 5: Solve for x
   x = 172,148,071,311,441/8,527,441
6. Step 6: Final answer
   x = 20,187,541.76