Finding the Third Proportional to 356,325 and 742,140.75

Step by Step Solution

1. Step 1: Write the proportion equation
   356,325 : 742,140.75 = 742,140.75 : x
2. Step 2: Convert to fraction form
   356,325/742,140.75 = 742,140.75/x
3. Step 3: Cross multiply
   356,325x = 742,140.75 × 742,140.75
4. Step 4: Simplify right side
   356,325x = 550,772,892,810.56
5. Step 5: Solve for x
   x = 550,772,892,810.56/356,325
6. Step 6: Final answer
   x = 1,545,703.76