Finding the Third Proportional to 63,499.50 and 135,746

Step by Step Solution

1. Step 1: Write the proportion equation
   63,499.50 : 135,746 = 135,746 : x
2. Step 2: Convert to fraction form
   63,499.50/135,746 = 135,746/x
3. Step 3: Cross multiply
   63,499.50x = 135,746 × 135,746
4. Step 4: Simplify right side
   63,499.50x = 18,426,976,516
5. Step 5: Solve for x
   x = 18,426,976,516/63,499.50
6. Step 6: Final answer
   x = 290,190.89