Finding the Third Proportional to 111,136 and 243,160

Step by Step Solution

1. Step 1: Write the proportion equation
   111,136 : 243,160 = 243,160 : x
2. Step 2: Convert to fraction form
   111,136/243,160 = 243,160/x
3. Step 3: Cross multiply
   111,136x = 243,160 × 243,160
4. Step 4: Simplify right side
   111,136x = 59,126,785,600
5. Step 5: Solve for x
   x = 59,126,785,600/111,136
6. Step 6: Final answer
   x = 532,021.90