Finding the Third Proportional to 456,274 and 710,200

Step by Step Solution

1. Step 1: Write the proportion equation
   456,274 : 710,200 = 710,200 : x
2. Step 2: Convert to fraction form
   456,274/710,200 = 710,200/x
3. Step 3: Cross multiply
   456,274x = 710,200 × 710,200
4. Step 4: Simplify right side
   456,274x = 504,384,040,000
5. Step 5: Solve for x
   x = 504,384,040,000/456,274
6. Step 6: Final answer
   x = 1,105,441.12