Finding the Third Proportional to 490,348 and 749,791.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,348 : 749,791.50 = 749,791.50 : x
2. Step 2: Convert to fraction form
   490,348/749,791.50 = 749,791.50/x
3. Step 3: Cross multiply
   490,348x = 749,791.50 × 749,791.50
4. Step 4: Simplify right side
   490,348x = 562,187,293,472.25
5. Step 5: Solve for x
   x = 562,187,293,472.25/490,348
6. Step 6: Final answer
   x = 1,146,506.75