Finding the Third Proportional to 1,212,480 and 1,811,232

Step by Step Solution

1. Step 1: Write the proportion equation
   1,212,480 : 1,811,232 = 1,811,232 : x
2. Step 2: Convert to fraction form
   1,212,480/1,811,232 = 1,811,232/x
3. Step 3: Cross multiply
   1,212,480x = 1,811,232 × 1,811,232
4. Step 4: Simplify right side
   1,212,480x = 3,280,561,357,824
5. Step 5: Solve for x
   x = 3,280,561,357,824/1,212,480
6. Step 6: Final answer
   x = 2,705,662.24