Finding the Third Proportional to 218,136 and 333,552

Step by Step Solution

1. Step 1: Write the proportion equation
   218,136 : 333,552 = 333,552 : x
2. Step 2: Convert to fraction form
   218,136/333,552 = 333,552/x
3. Step 3: Cross multiply
   218,136x = 333,552 × 333,552
4. Step 4: Simplify right side
   218,136x = 111,256,936,704
5. Step 5: Solve for x
   x = 111,256,936,704/218,136
6. Step 6: Final answer
   x = 510,034.73