Finding the Third Proportional to 491,711.50 and 742,090

Step by Step Solution

1. Step 1: Write the proportion equation
   491,711.50 : 742,090 = 742,090 : x
2. Step 2: Convert to fraction form
   491,711.50/742,090 = 742,090/x
3. Step 3: Cross multiply
   491,711.50x = 742,090 × 742,090
4. Step 4: Simplify right side
   491,711.50x = 550,697,568,100
5. Step 5: Solve for x
   x = 550,697,568,100/491,711.50
6. Step 6: Final answer
   x = 1,119,960.73