Finding the Third Proportional to 65,764 and 142,700

Step by Step Solution

1. Step 1: Write the proportion equation
   65,764 : 142,700 = 142,700 : x
2. Step 2: Convert to fraction form
   65,764/142,700 = 142,700/x
3. Step 3: Cross multiply
   65,764x = 142,700 × 142,700
4. Step 4: Simplify right side
   65,764x = 20,363,290,000
5. Step 5: Solve for x
   x = 20,363,290,000/65,764
6. Step 6: Final answer
   x = 309,641.90