Finding the Third Proportional to 490,432 and 749,903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   490,432 : 749,903.50 = 749,903.50 : x
2. Step 2: Convert to fraction form
   490,432/749,903.50 = 749,903.50/x
3. Step 3: Cross multiply
   490,432x = 749,903.50 × 749,903.50
4. Step 4: Simplify right side
   490,432x = 562,355,259,312.25
5. Step 5: Solve for x
   x = 562,355,259,312.25/490,432
6. Step 6: Final answer
   x = 1,146,652.87