Finding the Third Proportional to 40,272 and 85,910

Step by Step Solution

1. Step 1: Write the proportion equation
   40,272 : 85,910 = 85,910 : x
2. Step 2: Convert to fraction form
   40,272/85,910 = 85,910/x
3. Step 3: Cross multiply
   40,272x = 85,910 × 85,910
4. Step 4: Simplify right side
   40,272x = 7,380,528,100
5. Step 5: Solve for x
   x = 7,380,528,100/40,272
6. Step 6: Final answer
   x = 183,266.99