Finding the Third Proportional to 112,279.50 and 243,510.75

Step by Step Solution

1. Step 1: Write the proportion equation
   112,279.50 : 243,510.75 = 243,510.75 : x
2. Step 2: Convert to fraction form
   112,279.50/243,510.75 = 243,510.75/x
3. Step 3: Cross multiply
   112,279.50x = 243,510.75 × 243,510.75
4. Step 4: Simplify right side
   112,279.50x = 59,297,485,365.56
5. Step 5: Solve for x
   x = 59,297,485,365.56/112,279.50
6. Step 6: Final answer
   x = 528,123.88