Finding the Third Proportional to 7,836,134 and 12,108,818

Step by Step Solution

1. Step 1: Write the proportion equation
   7,836,134 : 12,108,818 = 12,108,818 : x
2. Step 2: Convert to fraction form
   7,836,134/12,108,818 = 12,108,818/x
3. Step 3: Cross multiply
   7,836,134x = 12,108,818 × 12,108,818
4. Step 4: Simplify right side
   7,836,134x = 146,623,473,357,124
5. Step 5: Solve for x
   x = 146,623,473,357,124/7,836,134
6. Step 6: Final answer
   x = 18,711,200.36