Finding the Third Proportional to 554,432 and 1,206,144

Step by Step Solution

1. Step 1: Write the proportion equation
   554,432 : 1,206,144 = 1,206,144 : x
2. Step 2: Convert to fraction form
   554,432/1,206,144 = 1,206,144/x
3. Step 3: Cross multiply
   554,432x = 1,206,144 × 1,206,144
4. Step 4: Simplify right side
   554,432x = 1,454,783,348,736
5. Step 5: Solve for x
   x = 1,454,783,348,736/554,432
6. Step 6: Final answer
   x = 2,623,916.64