Finding the Third Proportional to 387,564 and 822,030

Step by Step Solution

1. Step 1: Write the proportion equation
   387,564 : 822,030 = 822,030 : x
2. Step 2: Convert to fraction form
   387,564/822,030 = 822,030/x
3. Step 3: Cross multiply
   387,564x = 822,030 × 822,030
4. Step 4: Simplify right side
   387,564x = 675,733,320,900
5. Step 5: Solve for x
   x = 675,733,320,900/387,564
6. Step 6: Final answer
   x = 1,743,539.96