Finding the Third Proportional to 31,789 and 43,124

Step by Step Solution

1. Step 1: Write the proportion equation
   31,789 : 43,124 = 43,124 : x
2. Step 2: Convert to fraction form
   31,789/43,124 = 43,124/x
3. Step 3: Cross multiply
   31,789x = 43,124 × 43,124
4. Step 4: Simplify right side
   31,789x = 1,859,679,376
5. Step 5: Solve for x
   x = 1,859,679,376/31,789
6. Step 6: Final answer
   x = 58,500.72