Finding the Third Proportional to 666,762 and 1,440,144

Step by Step Solution

1. Step 1: Write the proportion equation
   666,762 : 1,440,144 = 1,440,144 : x
2. Step 2: Convert to fraction form
   666,762/1,440,144 = 1,440,144/x
3. Step 3: Cross multiply
   666,762x = 1,440,144 × 1,440,144
4. Step 4: Simplify right side
   666,762x = 2,074,014,740,736
5. Step 5: Solve for x
   x = 2,074,014,740,736/666,762
6. Step 6: Final answer
   x = 3,110,577.30