Finding the Third Proportional to 822,840 and 1,243,008

Step by Step Solution

1. Step 1: Write the proportion equation
   822,840 : 1,243,008 = 1,243,008 : x
2. Step 2: Convert to fraction form
   822,840/1,243,008 = 1,243,008/x
3. Step 3: Cross multiply
   822,840x = 1,243,008 × 1,243,008
4. Step 4: Simplify right side
   822,840x = 1,545,068,888,064
5. Step 5: Solve for x
   x = 1,545,068,888,064/822,840
6. Step 6: Final answer
   x = 1,877,727.00