Finding the Third Proportional to 40,371.75 and 85,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,371.75 : 85,603.50 = 85,603.50 : x
2. Step 2: Convert to fraction form
   40,371.75/85,603.50 = 85,603.50/x
3. Step 3: Cross multiply
   40,371.75x = 85,603.50 × 85,603.50
4. Step 4: Simplify right side
   40,371.75x = 7,327,959,212.25
5. Step 5: Solve for x
   x = 7,327,959,212.25/40,371.75
6. Step 6: Final answer
   x = 181,512.05