Finding the Third Proportional to 684,240 and 1,500,672

Step by Step Solution

1. Step 1: Write the proportion equation
   684,240 : 1,500,672 = 1,500,672 : x
2. Step 2: Convert to fraction form
   684,240/1,500,672 = 1,500,672/x
3. Step 3: Cross multiply
   684,240x = 1,500,672 × 1,500,672
4. Step 4: Simplify right side
   684,240x = 2,252,016,451,584
5. Step 5: Solve for x
   x = 2,252,016,451,584/684,240
6. Step 6: Final answer
   x = 3,291,266.88