Finding the Third Proportional to 112,128 and 186,872

Step by Step Solution

1. Step 1: Write the proportion equation
   112,128 : 186,872 = 186,872 : x
2. Step 2: Convert to fraction form
   112,128/186,872 = 186,872/x
3. Step 3: Cross multiply
   112,128x = 186,872 × 186,872
4. Step 4: Simplify right side
   112,128x = 34,921,144,384
5. Step 5: Solve for x
   x = 34,921,144,384/112,128
6. Step 6: Final answer
   x = 311,440.00