Finding the Third Proportional to 112,287 and 178,572.75

Step by Step Solution

1. Step 1: Write the proportion equation
   112,287 : 178,572.75 = 178,572.75 : x
2. Step 2: Convert to fraction form
   112,287/178,572.75 = 178,572.75/x
3. Step 3: Cross multiply
   112,287x = 178,572.75 × 178,572.75
4. Step 4: Simplify right side
   112,287x = 31,888,227,042.56
5. Step 5: Solve for x
   x = 31,888,227,042.56/112,287
6. Step 6: Final answer
   x = 283,988.59