Finding the Third Proportional to 63,432.50 and 138,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,432.50 : 138,165.50 = 138,165.50 : x
2. Step 2: Convert to fraction form
   63,432.50/138,165.50 = 138,165.50/x
3. Step 3: Cross multiply
   63,432.50x = 138,165.50 × 138,165.50
4. Step 4: Simplify right side
   63,432.50x = 19,089,705,390.25
5. Step 5: Solve for x
   x = 19,089,705,390.25/63,432.50
6. Step 6: Final answer
   x = 300,945.18