Finding the Third Proportional to 7,836,161 and 12,108,859.50

Step by Step Solution

1. Step 1: Write the proportion equation
   7,836,161 : 12,108,859.50 = 12,108,859.50 : x
2. Step 2: Convert to fraction form
   7,836,161/12,108,859.50 = 12,108,859.50/x
3. Step 3: Cross multiply
   7,836,161x = 12,108,859.50 × 12,108,859.50
4. Step 4: Simplify right side
   7,836,161x = 146,624,478,390,740.25
5. Step 5: Solve for x
   x = 146,624,478,390,740.25/7,836,161
6. Step 6: Final answer
   x = 18,711,264.15