Finding the Third Proportional to 12,862.13 and 30,981.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,862.13 : 30,981.75 = 30,981.75 : x
2. Step 2: Convert to fraction form
   12,862.13/30,981.75 = 30,981.75/x
3. Step 3: Cross multiply
   12,862.13x = 30,981.75 × 30,981.75
4. Step 4: Simplify right side
   12,862.13x = 959,868,833.06
5. Step 5: Solve for x
   x = 959,868,833.06/12,862.13
6. Step 6: Final answer
   x = 74,627.55