Finding the Third Proportional to 158,861.25 and 243,364.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,861.25 : 243,364.50 = 243,364.50 : x
2. Step 2: Convert to fraction form
   158,861.25/243,364.50 = 243,364.50/x
3. Step 3: Cross multiply
   158,861.25x = 243,364.50 × 243,364.50
4. Step 4: Simplify right side
   158,861.25x = 59,226,279,860.25
5. Step 5: Solve for x
   x = 59,226,279,860.25/158,861.25
6. Step 6: Final answer
   x = 372,817.66