Finding the Third Proportional to 56,703.75 and 123,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,703.75 : 123,784.50 = 123,784.50 : x
2. Step 2: Convert to fraction form
   56,703.75/123,784.50 = 123,784.50/x
3. Step 3: Cross multiply
   56,703.75x = 123,784.50 × 123,784.50
4. Step 4: Simplify right side
   56,703.75x = 15,322,602,440.25
5. Step 5: Solve for x
   x = 15,322,602,440.25/56,703.75
6. Step 6: Final answer
   x = 270,222.03