Finding the Third Proportional to 166,275.50 and 243,517.50

Step by Step Solution

1. Step 1: Write the proportion equation
   166,275.50 : 243,517.50 = 243,517.50 : x
2. Step 2: Convert to fraction form
   166,275.50/243,517.50 = 243,517.50/x
3. Step 3: Cross multiply
   166,275.50x = 243,517.50 × 243,517.50
4. Step 4: Simplify right side
   166,275.50x = 59,300,772,806.25
5. Step 5: Solve for x
   x = 59,300,772,806.25/166,275.50
6. Step 6: Final answer
   x = 356,641.67