Finding the Third Proportional to 78,112 and 124,208

Step by Step Solution

1. Step 1: Write the proportion equation
   78,112 : 124,208 = 124,208 : x
2. Step 2: Convert to fraction form
   78,112/124,208 = 124,208/x
3. Step 3: Cross multiply
   78,112x = 124,208 × 124,208
4. Step 4: Simplify right side
   78,112x = 15,427,627,264
5. Step 5: Solve for x
   x = 15,427,627,264/78,112
6. Step 6: Final answer
   x = 197,506.49