Finding the Third Proportional to 55,783.50 and 84,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   55,783.50 : 84,983.50 = 84,983.50 : x
2. Step 2: Convert to fraction form
   55,783.50/84,983.50 = 84,983.50/x
3. Step 3: Cross multiply
   55,783.50x = 84,983.50 × 84,983.50
4. Step 4: Simplify right side
   55,783.50x = 7,222,195,272.25
5. Step 5: Solve for x
   x = 7,222,195,272.25/55,783.50
6. Step 6: Final answer
   x = 129,468.31