Finding the Third Proportional to 59,712 and 84,890

Step by Step Solution

1. Step 1: Write the proportion equation
   59,712 : 84,890 = 84,890 : x
2. Step 2: Convert to fraction form
   59,712/84,890 = 84,890/x
3. Step 3: Cross multiply
   59,712x = 84,890 × 84,890
4. Step 4: Simplify right side
   59,712x = 7,206,312,100
5. Step 5: Solve for x
   x = 7,206,312,100/59,712
6. Step 6: Final answer
   x = 120,684.49