Finding the Third Proportional to 73,136 and 152,020

Step by Step Solution

1. Step 1: Write the proportion equation
   73,136 : 152,020 = 152,020 : x
2. Step 2: Convert to fraction form
   73,136/152,020 = 152,020/x
3. Step 3: Cross multiply
   73,136x = 152,020 × 152,020
4. Step 4: Simplify right side
   73,136x = 23,110,080,400
5. Step 5: Solve for x
   x = 23,110,080,400/73,136
6. Step 6: Final answer
   x = 315,987.75