Finding the Third Proportional to 921,900 and 2,011,908

Step by Step Solution

1. Step 1: Write the proportion equation
   921,900 : 2,011,908 = 2,011,908 : x
2. Step 2: Convert to fraction form
   921,900/2,011,908 = 2,011,908/x
3. Step 3: Cross multiply
   921,900x = 2,011,908 × 2,011,908
4. Step 4: Simplify right side
   921,900x = 4,047,773,800,464
5. Step 5: Solve for x
   x = 4,047,773,800,464/921,900
6. Step 6: Final answer
   x = 4,390,686.41