Finding the Third Proportional to 8,160,866 and 12,592,419

Step by Step Solution

1. Step 1: Write the proportion equation
   8,160,866 : 12,592,419 = 12,592,419 : x
2. Step 2: Convert to fraction form
   8,160,866/12,592,419 = 12,592,419/x
3. Step 3: Cross multiply
   8,160,866x = 12,592,419 × 12,592,419
4. Step 4: Simplify right side
   8,160,866x = 158,569,016,271,561
5. Step 5: Solve for x
   x = 158,569,016,271,561/8,160,866
6. Step 6: Final answer
   x = 19,430,415.38