Finding the Third Proportional to 42,279 and 59,110.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,279 : 59,110.50 = 59,110.50 : x
2. Step 2: Convert to fraction form
   42,279/59,110.50 = 59,110.50/x
3. Step 3: Cross multiply
   42,279x = 59,110.50 × 59,110.50
4. Step 4: Simplify right side
   42,279x = 3,494,051,210.25
5. Step 5: Solve for x
   x = 3,494,051,210.25/42,279
6. Step 6: Final answer
   x = 82,642.71