Finding the Third Proportional to 31,139 and 49,573

Step by Step Solution

1. Step 1: Write the proportion equation
   31,139 : 49,573 = 49,573 : x
2. Step 2: Convert to fraction form
   31,139/49,573 = 49,573/x
3. Step 3: Cross multiply
   31,139x = 49,573 × 49,573
4. Step 4: Simplify right side
   31,139x = 2,457,482,329
5. Step 5: Solve for x
   x = 2,457,482,329/31,139
6. Step 6: Final answer
   x = 78,919.76