Finding the Third Proportional to 2,112,921 and 4,400,946

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112,921 : 4,400,946 = 4,400,946 : x
2. Step 2: Convert to fraction form
   2,112,921/4,400,946 = 4,400,946/x
3. Step 3: Cross multiply
   2,112,921x = 4,400,946 × 4,400,946
4. Step 4: Simplify right side
   2,112,921x = 19,368,325,694,916
5. Step 5: Solve for x
   x = 19,368,325,694,916/2,112,921
6. Step 6: Final answer
   x = 9,166,611.39