Finding the Third Proportional to 2,112,942 and 4,400,988

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,942 : 4,400,988 = 4,400,988 : x
2. Step 2: Convert to fraction form
   2,112,942/4,400,988 = 4,400,988/x
3. Step 3: Cross multiply
   2,112,942x = 4,400,988 × 4,400,988
4. Step 4: Simplify right side
   2,112,942x = 19,368,695,376,144
5. Step 5: Solve for x
   x = 19,368,695,376,144/2,112,942
6. Step 6: Final answer
   x = 9,166,695.24