Finding the Third Proportional to 490,356 and 749,803.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,356 : 749,803.50 = 749,803.50 : x
2. Step 2: Convert to fraction form
   490,356/749,803.50 = 749,803.50/x
3. Step 3: Cross multiply
   490,356x = 749,803.50 × 749,803.50
4. Step 4: Simplify right side
   490,356x = 562,205,288,612.25
5. Step 5: Solve for x
   x = 562,205,288,612.25/490,356
6. Step 6: Final answer
   x = 1,146,524.75