Finding the Third Proportional to 570,402 and 1,231,200

Step by Step Solution

1. Step 1: Write the proportion equation
   570,402 : 1,231,200 = 1,231,200 : x
2. Step 2: Convert to fraction form
   570,402/1,231,200 = 1,231,200/x
3. Step 3: Cross multiply
   570,402x = 1,231,200 × 1,231,200
4. Step 4: Simplify right side
   570,402x = 1,515,853,440,000
5. Step 5: Solve for x
   x = 1,515,853,440,000/570,402
6. Step 6: Final answer
   x = 2,657,517.75