Finding the Third Proportional to 57,248 and 84,215.50

Step by Step Solution

1. Step 1: Write the proportion equation
   57,248 : 84,215.50 = 84,215.50 : x
2. Step 2: Convert to fraction form
   57,248/84,215.50 = 84,215.50/x
3. Step 3: Cross multiply
   57,248x = 84,215.50 × 84,215.50
4. Step 4: Simplify right side
   57,248x = 7,092,250,440.25
5. Step 5: Solve for x
   x = 7,092,250,440.25/57,248
6. Step 6: Final answer
   x = 123,886.43