Finding the Third Proportional to 648,795 and 1,423,890

Step by Step Solution

1. Step 1: Write the proportion equation
   648,795 : 1,423,890 = 1,423,890 : x
2. Step 2: Convert to fraction form
   648,795/1,423,890 = 1,423,890/x
3. Step 3: Cross multiply
   648,795x = 1,423,890 × 1,423,890
4. Step 4: Simplify right side
   648,795x = 2,027,462,732,100
5. Step 5: Solve for x
   x = 2,027,462,732,100/648,795
6. Step 6: Final answer
   x = 3,124,966.64