Finding the Third Proportional to 42,722 and 59,915

Step by Step Solution

1. Step 1: Write the proportion equation
   42,722 : 59,915 = 59,915 : x
2. Step 2: Convert to fraction form
   42,722/59,915 = 59,915/x
3. Step 3: Cross multiply
   42,722x = 59,915 × 59,915
4. Step 4: Simplify right side
   42,722x = 3,589,807,225
5. Step 5: Solve for x
   x = 3,589,807,225/42,722
6. Step 6: Final answer
   x = 84,027.13