Finding the Third Proportional to 1,247,972 and 1,783,365

Step by Step Solution

1. Step 1: Write the proportion equation
   1,247,972 : 1,783,365 = 1,783,365 : x
2. Step 2: Convert to fraction form
   1,247,972/1,783,365 = 1,783,365/x
3. Step 3: Cross multiply
   1,247,972x = 1,783,365 × 1,783,365
4. Step 4: Simplify right side
   1,247,972x = 3,180,390,723,225
5. Step 5: Solve for x
   x = 3,180,390,723,225/1,247,972
6. Step 6: Final answer
   x = 2,548,447.18