Finding the Third Proportional to 58,477.50 and 128,083.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,477.50 : 128,083.50 = 128,083.50 : x
2. Step 2: Convert to fraction form
   58,477.50/128,083.50 = 128,083.50/x
3. Step 3: Cross multiply
   58,477.50x = 128,083.50 × 128,083.50
4. Step 4: Simplify right side
   58,477.50x = 16,405,382,972.25
5. Step 5: Solve for x
   x = 16,405,382,972.25/58,477.50
6. Step 6: Final answer
   x = 280,541.80