Finding the Third Proportional to 455,720 and 997,250

Step by Step Solution

1. Step 1: Write the proportion equation
   455,720 : 997,250 = 997,250 : x
2. Step 2: Convert to fraction form
   455,720/997,250 = 997,250/x
3. Step 3: Cross multiply
   455,720x = 997,250 × 997,250
4. Step 4: Simplify right side
   455,720x = 994,507,562,500
5. Step 5: Solve for x
   x = 994,507,562,500/455,720
6. Step 6: Final answer
   x = 2,182,277.63