Finding the Third Proportional to 74,905 and 113,890

Step by Step Solution

1. Step 1: Write the proportion equation
   74,905 : 113,890 = 113,890 : x
2. Step 2: Convert to fraction form
   74,905/113,890 = 113,890/x
3. Step 3: Cross multiply
   74,905x = 113,890 × 113,890
4. Step 4: Simplify right side
   74,905x = 12,970,932,100
5. Step 5: Solve for x
   x = 12,970,932,100/74,905
6. Step 6: Final answer
   x = 173,165.10