Finding the Third Proportional to 14,521 and 31,810

Step by Step Solution

1. Step 1: Write the proportion equation
   14,521 : 31,810 = 31,810 : x
2. Step 2: Convert to fraction form
   14,521/31,810 = 31,810/x
3. Step 3: Cross multiply
   14,521x = 31,810 × 31,810
4. Step 4: Simplify right side
   14,521x = 1,011,876,100
5. Step 5: Solve for x
   x = 1,011,876,100/14,521
6. Step 6: Final answer
   x = 69,683.64