Finding the Third Proportional to 891,364 and 1,921,330

Step by Step Solution

1. Step 1: Write the proportion equation
   891,364 : 1,921,330 = 1,921,330 : x
2. Step 2: Convert to fraction form
   891,364/1,921,330 = 1,921,330/x
3. Step 3: Cross multiply
   891,364x = 1,921,330 × 1,921,330
4. Step 4: Simplify right side
   891,364x = 3,691,508,968,900
5. Step 5: Solve for x
   x = 3,691,508,968,900/891,364
6. Step 6: Final answer
   x = 4,141,415.82