Finding the Third Proportional to 1,916,500 and 4,221,876

Step by Step Solution

1. Step 1: Write the proportion equation
   1,916,500 : 4,221,876 = 4,221,876 : x
2. Step 2: Convert to fraction form
   1,916,500/4,221,876 = 4,221,876/x
3. Step 3: Cross multiply
   1,916,500x = 4,221,876 × 4,221,876
4. Step 4: Simplify right side
   1,916,500x = 17,824,236,959,376
5. Step 5: Solve for x
   x = 17,824,236,959,376/1,916,500
6. Step 6: Final answer
   x = 9,300,410.62