Finding the Third Proportional to 845,128 and 1,856,144

Step by Step Solution

1. Step 1: Write the proportion equation
   845,128 : 1,856,144 = 1,856,144 : x
2. Step 2: Convert to fraction form
   845,128/1,856,144 = 1,856,144/x
3. Step 3: Cross multiply
   845,128x = 1,856,144 × 1,856,144
4. Step 4: Simplify right side
   845,128x = 3,445,270,548,736
5. Step 5: Solve for x
   x = 3,445,270,548,736/845,128
6. Step 6: Final answer
   x = 4,076,625.73