Finding the Third Proportional to 12,988 and 30,482

Step by Step Solution

1. Step 1: Write the proportion equation
   12,988 : 30,482 = 30,482 : x
2. Step 2: Convert to fraction form
   12,988/30,482 = 30,482/x
3. Step 3: Cross multiply
   12,988x = 30,482 × 30,482
4. Step 4: Simplify right side
   12,988x = 929,152,324
5. Step 5: Solve for x
   x = 929,152,324/12,988
6. Step 6: Final answer
   x = 71,539.29