Finding the Third Proportional to 12,171,573 and 18,836,833.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,171,573 : 18,836,833.50 = 18,836,833.50 : x
2. Step 2: Convert to fraction form
   12,171,573/18,836,833.50 = 18,836,833.50/x
3. Step 3: Cross multiply
   12,171,573x = 18,836,833.50 × 18,836,833.50
4. Step 4: Simplify right side
   12,171,573x = 354,826,296,306,722.25
5. Step 5: Solve for x
   x = 354,826,296,306,722.25/12,171,573
6. Step 6: Final answer
   x = 29,152,049.31