Finding the Third Proportional to 648,144 and 1,014,432

Step by Step Solution

1. Step 1: Write the proportion equation
   648,144 : 1,014,432 = 1,014,432 : x
2. Step 2: Convert to fraction form
   648,144/1,014,432 = 1,014,432/x
3. Step 3: Cross multiply
   648,144x = 1,014,432 × 1,014,432
4. Step 4: Simplify right side
   648,144x = 1,029,072,282,624
5. Step 5: Solve for x
   x = 1,029,072,282,624/648,144
6. Step 6: Final answer
   x = 1,587,721.68