Finding the Third Proportional to 622,188 and 1,363,608

Step by Step Solution

1. Step 1: Write the proportion equation
   622,188 : 1,363,608 = 1,363,608 : x
2. Step 2: Convert to fraction form
   622,188/1,363,608 = 1,363,608/x
3. Step 3: Cross multiply
   622,188x = 1,363,608 × 1,363,608
4. Step 4: Simplify right side
   622,188x = 1,859,426,777,664
5. Step 5: Solve for x
   x = 1,859,426,777,664/622,188
6. Step 6: Final answer
   x = 2,988,528.83