Finding the Third Proportional to 31,910 and 69,862

Step by Step Solution

1. Step 1: Write the proportion equation
   31,910 : 69,862 = 69,862 : x
2. Step 2: Convert to fraction form
   31,910/69,862 = 69,862/x
3. Step 3: Cross multiply
   31,910x = 69,862 × 69,862
4. Step 4: Simplify right side
   31,910x = 4,880,699,044
5. Step 5: Solve for x
   x = 4,880,699,044/31,910
6. Step 6: Final answer
   x = 152,952.02