Finding the Third Proportional to 291,630.38 and 606,540

Step by Step Solution

1. Step 1: Write the proportion equation
   291,630.38 : 606,540 = 606,540 : x
2. Step 2: Convert to fraction form
   291,630.38/606,540 = 606,540/x
3. Step 3: Cross multiply
   291,630.38x = 606,540 × 606,540
4. Step 4: Simplify right side
   291,630.38x = 367,890,771,600
5. Step 5: Solve for x
   x = 367,890,771,600/291,630.38
6. Step 6: Final answer
   x = 1,261,496.75