Finding the Third Proportional to 917,598 and 2,021,819

Step by Step Solution

1. Step 1: Write the proportion equation
   917,598 : 2,021,819 = 2,021,819 : x
2. Step 2: Convert to fraction form
   917,598/2,021,819 = 2,021,819/x
3. Step 3: Cross multiply
   917,598x = 2,021,819 × 2,021,819
4. Step 4: Simplify right side
   917,598x = 4,087,752,068,761
5. Step 5: Solve for x
   x = 4,087,752,068,761/917,598
6. Step 6: Final answer
   x = 4,454,839.78