Finding the Third Proportional to 59,221.50 and 78,248.25

Step by Step Solution

1. Step 1: Write the proportion equation
   59,221.50 : 78,248.25 = 78,248.25 : x
2. Step 2: Convert to fraction form
   59,221.50/78,248.25 = 78,248.25/x
3. Step 3: Cross multiply
   59,221.50x = 78,248.25 × 78,248.25
4. Step 4: Simplify right side
   59,221.50x = 6,122,788,628.06
5. Step 5: Solve for x
   x = 6,122,788,628.06/59,221.50
6. Step 6: Final answer
   x = 103,387.94