Finding the Third Proportional to 116,136 and 251,280

Step by Step Solution

1. Step 1: Write the proportion equation
   116,136 : 251,280 = 251,280 : x
2. Step 2: Convert to fraction form
   116,136/251,280 = 251,280/x
3. Step 3: Cross multiply
   116,136x = 251,280 × 251,280
4. Step 4: Simplify right side
   116,136x = 63,141,638,400
5. Step 5: Solve for x
   x = 63,141,638,400/116,136
6. Step 6: Final answer
   x = 543,687.04