Finding the Third Proportional to 71,570 and 157,300

Step by Step Solution

1. Step 1: Write the proportion equation
   71,570 : 157,300 = 157,300 : x
2. Step 2: Convert to fraction form
   71,570/157,300 = 157,300/x
3. Step 3: Cross multiply
   71,570x = 157,300 × 157,300
4. Step 4: Simplify right side
   71,570x = 24,743,290,000
5. Step 5: Solve for x
   x = 24,743,290,000/71,570
6. Step 6: Final answer
   x = 345,721.53