Finding the Third Proportional to 134,348.50 and 293,258

Step by Step Solution

1. Step 1: Write the proportion equation
   134,348.50 : 293,258 = 293,258 : x
2. Step 2: Convert to fraction form
   134,348.50/293,258 = 293,258/x
3. Step 3: Cross multiply
   134,348.50x = 293,258 × 293,258
4. Step 4: Simplify right side
   134,348.50x = 86,000,254,564
5. Step 5: Solve for x
   x = 86,000,254,564/134,348.50
6. Step 6: Final answer
   x = 640,128.13