Finding the Third Proportional to 66,594 and 142,980

Step by Step Solution

1. Step 1: Write the proportion equation
   66,594 : 142,980 = 142,980 : x
2. Step 2: Convert to fraction form
   66,594/142,980 = 142,980/x
3. Step 3: Cross multiply
   66,594x = 142,980 × 142,980
4. Step 4: Simplify right side
   66,594x = 20,443,280,400
5. Step 5: Solve for x
   x = 20,443,280,400/66,594
6. Step 6: Final answer
   x = 306,983.82