Finding the Third Proportional to 485,666 and 735,274

Step by Step Solution

1. Step 1: Write the proportion equation
   485,666 : 735,274 = 735,274 : x
2. Step 2: Convert to fraction form
   485,666/735,274 = 735,274/x
3. Step 3: Cross multiply
   485,666x = 735,274 × 735,274
4. Step 4: Simplify right side
   485,666x = 540,627,855,076
5. Step 5: Solve for x
   x = 540,627,855,076/485,666
6. Step 6: Final answer
   x = 1,113,168.01