Finding the Third Proportional to 116,328 and 245,712

Step by Step Solution

1. Step 1: Write the proportion equation
   116,328 : 245,712 = 245,712 : x
2. Step 2: Convert to fraction form
   116,328/245,712 = 245,712/x
3. Step 3: Cross multiply
   116,328x = 245,712 × 245,712
4. Step 4: Simplify right side
   116,328x = 60,374,386,944
5. Step 5: Solve for x
   x = 60,374,386,944/116,328
6. Step 6: Final answer
   x = 519,001.33