Finding the Third Proportional to 622,140 and 1,285,752

Step by Step Solution

1. Step 1: Write the proportion equation
   622,140 : 1,285,752 = 1,285,752 : x
2. Step 2: Convert to fraction form
   622,140/1,285,752 = 1,285,752/x
3. Step 3: Cross multiply
   622,140x = 1,285,752 × 1,285,752
4. Step 4: Simplify right side
   622,140x = 1,653,158,205,504
5. Step 5: Solve for x
   x = 1,653,158,205,504/622,140
6. Step 6: Final answer
   x = 2,657,212.53