Finding the Third Proportional to 67,979.25 and 147,258

Step by Step Solution

1. Step 1: Write the proportion equation
   67,979.25 : 147,258 = 147,258 : x
2. Step 2: Convert to fraction form
   67,979.25/147,258 = 147,258/x
3. Step 3: Cross multiply
   67,979.25x = 147,258 × 147,258
4. Step 4: Simplify right side
   67,979.25x = 21,684,918,564
5. Step 5: Solve for x
   x = 21,684,918,564/67,979.25
6. Step 6: Final answer
   x = 318,993.20