Finding the Third Proportional to 317,200.50 and 740,160

Step by Step Solution

1. Step 1: Write the proportion equation
   317,200.50 : 740,160 = 740,160 : x
2. Step 2: Convert to fraction form
   317,200.50/740,160 = 740,160/x
3. Step 3: Cross multiply
   317,200.50x = 740,160 × 740,160
4. Step 4: Simplify right side
   317,200.50x = 547,836,825,600
5. Step 5: Solve for x
   x = 547,836,825,600/317,200.50
6. Step 6: Final answer
   x = 1,727,099.50