Finding the Third Proportional to 134,434.50 and 292,440

Step by Step Solution

1. Step 1: Write the proportion equation
   134,434.50 : 292,440 = 292,440 : x
2. Step 2: Convert to fraction form
   134,434.50/292,440 = 292,440/x
3. Step 3: Cross multiply
   134,434.50x = 292,440 × 292,440
4. Step 4: Simplify right side
   134,434.50x = 85,521,153,600
5. Step 5: Solve for x
   x = 85,521,153,600/134,434.50
6. Step 6: Final answer
   x = 636,154.81