Finding the Third Proportional to 14,387.63 and 31,189.50

Step by Step Solution

1. Step 1: Write the proportion equation
   14,387.63 : 31,189.50 = 31,189.50 : x
2. Step 2: Convert to fraction form
   14,387.63/31,189.50 = 31,189.50/x
3. Step 3: Cross multiply
   14,387.63x = 31,189.50 × 31,189.50
4. Step 4: Simplify right side
   14,387.63x = 972,784,910.25
5. Step 5: Solve for x
   x = 972,784,910.25/14,387.63
6. Step 6: Final answer
   x = 67,612.61