Finding the Third Proportional to 64,548 and 141,570

Step by Step Solution

1. Step 1: Write the proportion equation
   64,548 : 141,570 = 141,570 : x
2. Step 2: Convert to fraction form
   64,548/141,570 = 141,570/x
3. Step 3: Cross multiply
   64,548x = 141,570 × 141,570
4. Step 4: Simplify right side
   64,548x = 20,042,064,900
5. Step 5: Solve for x
   x = 20,042,064,900/64,548
6. Step 6: Final answer
   x = 310,498.62