Finding the Third Proportional to 50,246.25 and 78,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,246.25 : 78,136.50 = 78,136.50 : x
2. Step 2: Convert to fraction form
   50,246.25/78,136.50 = 78,136.50/x
3. Step 3: Cross multiply
   50,246.25x = 78,136.50 × 78,136.50
4. Step 4: Simplify right side
   50,246.25x = 6,105,312,632.25
5. Step 5: Solve for x
   x = 6,105,312,632.25/50,246.25
6. Step 6: Final answer
   x = 121,507.83