Finding the Third Proportional to 906,312 and 2,116,728

Step by Step Solution

1. Step 1: Write the proportion equation
   906,312 : 2,116,728 = 2,116,728 : x
2. Step 2: Convert to fraction form
   906,312/2,116,728 = 2,116,728/x
3. Step 3: Cross multiply
   906,312x = 2,116,728 × 2,116,728
4. Step 4: Simplify right side
   906,312x = 4,480,537,425,984
5. Step 5: Solve for x
   x = 4,480,537,425,984/906,312
6. Step 6: Final answer
   x = 4,943,703.08