Finding the Third Proportional to 56,784.50 and 123,511.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,784.50 : 123,511.75 = 123,511.75 : x
2. Step 2: Convert to fraction form
   56,784.50/123,511.75 = 123,511.75/x
3. Step 3: Cross multiply
   56,784.50x = 123,511.75 × 123,511.75
4. Step 4: Simplify right side
   56,784.50x = 15,255,152,388.06
5. Step 5: Solve for x
   x = 15,255,152,388.06/56,784.50
6. Step 6: Final answer
   x = 268,649.94