Finding the Third Proportional to 75,123 and 112,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   75,123 : 112,449.50 = 112,449.50 : x
2. Step 2: Convert to fraction form
   75,123/112,449.50 = 112,449.50/x
3. Step 3: Cross multiply
   75,123x = 112,449.50 × 112,449.50
4. Step 4: Simplify right side
   75,123x = 12,644,890,050.25
5. Step 5: Solve for x
   x = 12,644,890,050.25/75,123
6. Step 6: Final answer
   x = 168,322.49