Finding the Third Proportional to 40,428 and 88,630

Step by Step Solution

1. Step 1: Write the proportion equation
   40,428 : 88,630 = 88,630 : x
2. Step 2: Convert to fraction form
   40,428/88,630 = 88,630/x
3. Step 3: Cross multiply
   40,428x = 88,630 × 88,630
4. Step 4: Simplify right side
   40,428x = 7,855,276,900
5. Step 5: Solve for x
   x = 7,855,276,900/40,428
6. Step 6: Final answer
   x = 194,302.88