Finding the Third Proportional to 1,331,936 and 2,118,480

Step by Step Solution

1. Step 1: Write the proportion equation
   1,331,936 : 2,118,480 = 2,118,480 : x
2. Step 2: Convert to fraction form
   1,331,936/2,118,480 = 2,118,480/x
3. Step 3: Cross multiply
   1,331,936x = 2,118,480 × 2,118,480
4. Step 4: Simplify right side
   1,331,936x = 4,487,957,510,400
5. Step 5: Solve for x
   x = 4,487,957,510,400/1,331,936
6. Step 6: Final answer
   x = 3,369,499.37