Finding the Third Proportional to 485,454 and 1,064,220

Step by Step Solution

1. Step 1: Write the proportion equation
   485,454 : 1,064,220 = 1,064,220 : x
2. Step 2: Convert to fraction form
   485,454/1,064,220 = 1,064,220/x
3. Step 3: Cross multiply
   485,454x = 1,064,220 × 1,064,220
4. Step 4: Simplify right side
   485,454x = 1,132,564,208,400
5. Step 5: Solve for x
   x = 1,132,564,208,400/485,454
6. Step 6: Final answer
   x = 2,333,000.05