Finding the Third Proportional to 30,988 and 63,810

Step by Step Solution

1. Step 1: Write the proportion equation
   30,988 : 63,810 = 63,810 : x
2. Step 2: Convert to fraction form
   30,988/63,810 = 63,810/x
3. Step 3: Cross multiply
   30,988x = 63,810 × 63,810
4. Step 4: Simplify right side
   30,988x = 4,071,716,100
5. Step 5: Solve for x
   x = 4,071,716,100/30,988
6. Step 6: Final answer
   x = 131,396.54