Finding the Third Proportional to 275,270 and 402,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   275,270 : 402,281.50 = 402,281.50 : x
2. Step 2: Convert to fraction form
   275,270/402,281.50 = 402,281.50/x
3. Step 3: Cross multiply
   275,270x = 402,281.50 × 402,281.50
4. Step 4: Simplify right side
   275,270x = 161,830,405,242.25
5. Step 5: Solve for x
   x = 161,830,405,242.25/275,270
6. Step 6: Final answer
   x = 587,896.99