Finding the Third Proportional to 622,156 and 1,285,784

Step by Step Solution

1. Step 1: Write the proportion equation
   622,156 : 1,285,784 = 1,285,784 : x
2. Step 2: Convert to fraction form
   622,156/1,285,784 = 1,285,784/x
3. Step 3: Cross multiply
   622,156x = 1,285,784 × 1,285,784
4. Step 4: Simplify right side
   622,156x = 1,653,240,494,656
5. Step 5: Solve for x
   x = 1,653,240,494,656/622,156
6. Step 6: Final answer
   x = 2,657,276.46