Finding the Third Proportional to 56,389.50 and 83,976.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,389.50 : 83,976.75 = 83,976.75 : x
2. Step 2: Convert to fraction form
   56,389.50/83,976.75 = 83,976.75/x
3. Step 3: Cross multiply
   56,389.50x = 83,976.75 × 83,976.75
4. Step 4: Simplify right side
   56,389.50x = 7,052,094,540.56
5. Step 5: Solve for x
   x = 7,052,094,540.56/56,389.50
6. Step 6: Final answer
   x = 125,060.42