Finding the Third Proportional to 59,222.50 and 78,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,222.50 : 78,249.50 = 78,249.50 : x
2. Step 2: Convert to fraction form
   59,222.50/78,249.50 = 78,249.50/x
3. Step 3: Cross multiply
   59,222.50x = 78,249.50 × 78,249.50
4. Step 4: Simplify right side
   59,222.50x = 6,122,984,250.25
5. Step 5: Solve for x
   x = 6,122,984,250.25/59,222.50
6. Step 6: Final answer
   x = 103,389.49