Finding the Third Proportional to 123,260 and 176,140

Step by Step Solution

1. Step 1: Write the proportion equation
   123,260 : 176,140 = 176,140 : x
2. Step 2: Convert to fraction form
   123,260/176,140 = 176,140/x
3. Step 3: Cross multiply
   123,260x = 176,140 × 176,140
4. Step 4: Simplify right side
   123,260x = 31,025,299,600
5. Step 5: Solve for x
   x = 31,025,299,600/123,260
6. Step 6: Final answer
   x = 251,706.15