Finding the Third Proportional to 158,407.50 and 243,154.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,407.50 : 243,154.50 = 243,154.50 : x
2. Step 2: Convert to fraction form
   158,407.50/243,154.50 = 243,154.50/x
3. Step 3: Cross multiply
   158,407.50x = 243,154.50 × 243,154.50
4. Step 4: Simplify right side
   158,407.50x = 59,124,110,870.25
5. Step 5: Solve for x
   x = 59,124,110,870.25/158,407.50
6. Step 6: Final answer
   x = 373,240.60