Finding the Third Proportional to 490,111.50 and 749,586

Step by Step Solution

1. Step 1: Write the proportion equation
   490,111.50 : 749,586 = 749,586 : x
2. Step 2: Convert to fraction form
   490,111.50/749,586 = 749,586/x
3. Step 3: Cross multiply
   490,111.50x = 749,586 × 749,586
4. Step 4: Simplify right side
   490,111.50x = 561,879,171,396
5. Step 5: Solve for x
   x = 561,879,171,396/490,111.50
6. Step 6: Final answer
   x = 1,146,431.31