Finding the Third Proportional to 12,992.91 and 30,363.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,992.91 : 30,363.61 = 30,363.61 : x
2. Step 2: Convert to fraction form
   12,992.91/30,363.61 = 30,363.61/x
3. Step 3: Cross multiply
   12,992.91x = 30,363.61 × 30,363.61
4. Step 4: Simplify right side
   12,992.91x = 921,948,774.28
5. Step 5: Solve for x
   x = 921,948,774.28/12,992.91
6. Step 6: Final answer
   x = 70,957.86