Finding the Third Proportional to 490,435 and 749,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,435 : 749,908.50 = 749,908.50 : x
2. Step 2: Convert to fraction form
   490,435/749,908.50 = 749,908.50/x
3. Step 3: Cross multiply
   490,435x = 749,908.50 × 749,908.50
4. Step 4: Simplify right side
   490,435x = 562,362,758,372.25
5. Step 5: Solve for x
   x = 562,362,758,372.25/490,435
6. Step 6: Final answer
   x = 1,146,661.14