Finding the Third Proportional to 138,176.50 and 297,494

Step by Step Solution

1. Step 1: Write the proportion equation
   138,176.50 : 297,494 = 297,494 : x
2. Step 2: Convert to fraction form
   138,176.50/297,494 = 297,494/x
3. Step 3: Cross multiply
   138,176.50x = 297,494 × 297,494
4. Step 4: Simplify right side
   138,176.50x = 88,502,680,036
5. Step 5: Solve for x
   x = 88,502,680,036/138,176.50
6. Step 6: Final answer
   x = 640,504.57