Finding the Third Proportional to 45,258.75 and 99,432.56

Step by Step Solution

1. Step 1: Write the proportion equation
   45,258.75 : 99,432.56 = 99,432.56 : x
2. Step 2: Convert to fraction form
   45,258.75/99,432.56 = 99,432.56/x
3. Step 3: Cross multiply
   45,258.75x = 99,432.56 × 99,432.56
4. Step 4: Simplify right side
   45,258.75x = 9,886,834,485.32
5. Step 5: Solve for x
   x = 9,886,834,485.32/45,258.75
6. Step 6: Final answer
   x = 218,451.34