Finding the Third Proportional to 561,828 and 1,238,178

Step by Step Solution

1. Step 1: Write the proportion equation
   561,828 : 1,238,178 = 1,238,178 : x
2. Step 2: Convert to fraction form
   561,828/1,238,178 = 1,238,178/x
3. Step 3: Cross multiply
   561,828x = 1,238,178 × 1,238,178
4. Step 4: Simplify right side
   561,828x = 1,533,084,759,684
5. Step 5: Solve for x
   x = 1,533,084,759,684/561,828
6. Step 6: Final answer
   x = 2,728,743.96