Finding the Third Proportional to 64,958 and 141,820

Step by Step Solution

1. Step 1: Write the proportion equation
   64,958 : 141,820 = 141,820 : x
2. Step 2: Convert to fraction form
   64,958/141,820 = 141,820/x
3. Step 3: Cross multiply
   64,958x = 141,820 × 141,820
4. Step 4: Simplify right side
   64,958x = 20,112,912,400
5. Step 5: Solve for x
   x = 20,112,912,400/64,958
6. Step 6: Final answer
   x = 309,629.49