Finding the Third Proportional to 31,276 and 49,140

Step by Step Solution

1. Step 1: Write the proportion equation
   31,276 : 49,140 = 49,140 : x
2. Step 2: Convert to fraction form
   31,276/49,140 = 49,140/x
3. Step 3: Cross multiply
   31,276x = 49,140 × 49,140
4. Step 4: Simplify right side
   31,276x = 2,414,739,600
5. Step 5: Solve for x
   x = 2,414,739,600/31,276
6. Step 6: Final answer
   x = 77,207.43