Finding the Third Proportional to 40,022 and 72,430

Step by Step Solution

1. Step 1: Write the proportion equation
   40,022 : 72,430 = 72,430 : x
2. Step 2: Convert to fraction form
   40,022/72,430 = 72,430/x
3. Step 3: Cross multiply
   40,022x = 72,430 × 72,430
4. Step 4: Simplify right side
   40,022x = 5,246,104,900
5. Step 5: Solve for x
   x = 5,246,104,900/40,022
6. Step 6: Final answer
   x = 131,080.53