Finding the Third Proportional to 906,648.19 and 1,906,380.56

Step by Step Solution

1. Step 1: Write the proportion equation
   906,648.19 : 1,906,380.56 = 1,906,380.56 : x
2. Step 2: Convert to fraction form
   906,648.19/1,906,380.56 = 1,906,380.56/x
3. Step 3: Cross multiply
   906,648.19x = 1,906,380.56 × 1,906,380.56
4. Step 4: Simplify right side
   906,648.19x = 3,634,286,849,077.82
5. Step 5: Solve for x
   x = 3,634,286,849,077.82/906,648.19
6. Step 6: Final answer
   x = 4,008,486.31