Finding the Third Proportional to 124,640 and 196,032

Step by Step Solution

1. Step 1: Write the proportion equation
   124,640 : 196,032 = 196,032 : x
2. Step 2: Convert to fraction form
   124,640/196,032 = 196,032/x
3. Step 3: Cross multiply
   124,640x = 196,032 × 196,032
4. Step 4: Simplify right side
   124,640x = 38,428,545,024
5. Step 5: Solve for x
   x = 38,428,545,024/124,640
6. Step 6: Final answer
   x = 308,316.31