Finding the Third Proportional to 94,820 and 142,830

Step by Step Solution

1. Step 1: Write the proportion equation
   94,820 : 142,830 = 142,830 : x
2. Step 2: Convert to fraction form
   94,820/142,830 = 142,830/x
3. Step 3: Cross multiply
   94,820x = 142,830 × 142,830
4. Step 4: Simplify right side
   94,820x = 20,400,408,900
5. Step 5: Solve for x
   x = 20,400,408,900/94,820
6. Step 6: Final answer
   x = 215,148.80