Finding the Third Proportional to 1,942,578 and 4,121,856

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942,578 : 4,121,856 = 4,121,856 : x
2. Step 2: Convert to fraction form
   1,942,578/4,121,856 = 4,121,856/x
3. Step 3: Cross multiply
   1,942,578x = 4,121,856 × 4,121,856
4. Step 4: Simplify right side
   1,942,578x = 16,989,696,884,736
5. Step 5: Solve for x
   x = 16,989,696,884,736/1,942,578
6. Step 6: Final answer
   x = 8,745,953.51