Finding the Third Proportional to 907,290 and 1,921,986

Step by Step Solution

1. Step 1: Write the proportion equation
   907,290 : 1,921,986 = 1,921,986 : x
2. Step 2: Convert to fraction form
   907,290/1,921,986 = 1,921,986/x
3. Step 3: Cross multiply
   907,290x = 1,921,986 × 1,921,986
4. Step 4: Simplify right side
   907,290x = 3,694,030,184,196
5. Step 5: Solve for x
   x = 3,694,030,184,196/907,290
6. Step 6: Final answer
   x = 4,071,498.84