Finding the Third Proportional to 32,810 and 71,290

Step by Step Solution

1. Step 1: Write the proportion equation
   32,810 : 71,290 = 71,290 : x
2. Step 2: Convert to fraction form
   32,810/71,290 = 71,290/x
3. Step 3: Cross multiply
   32,810x = 71,290 × 71,290
4. Step 4: Simplify right side
   32,810x = 5,082,264,100
5. Step 5: Solve for x
   x = 5,082,264,100/32,810
6. Step 6: Final answer
   x = 154,899.85