Finding the Third Proportional to 31,651 and 69,340

Step by Step Solution

1. Step 1: Write the proportion equation
   31,651 : 69,340 = 69,340 : x
2. Step 2: Convert to fraction form
   31,651/69,340 = 69,340/x
3. Step 3: Cross multiply
   31,651x = 69,340 × 69,340
4. Step 4: Simplify right side
   31,651x = 4,808,035,600
5. Step 5: Solve for x
   x = 4,808,035,600/31,651
6. Step 6: Final answer
   x = 151,907.86