Finding the Third Proportional to 8,247,134 and 12,123,549

Step by Step Solution

1. Step 1: Write the proportion equation
   8,247,134 : 12,123,549 = 12,123,549 : x
2. Step 2: Convert to fraction form
   8,247,134/12,123,549 = 12,123,549/x
3. Step 3: Cross multiply
   8,247,134x = 12,123,549 × 12,123,549
4. Step 4: Simplify right side
   8,247,134x = 146,980,440,355,401
5. Step 5: Solve for x
   x = 146,980,440,355,401/8,247,134
6. Step 6: Final answer
   x = 17,822,002.21