Finding the Third Proportional to 58,216.50 and 127,329.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,216.50 : 127,329.50 = 127,329.50 : x
2. Step 2: Convert to fraction form
   58,216.50/127,329.50 = 127,329.50/x
3. Step 3: Cross multiply
   58,216.50x = 127,329.50 × 127,329.50
4. Step 4: Simplify right side
   58,216.50x = 16,212,801,570.25
5. Step 5: Solve for x
   x = 16,212,801,570.25/58,216.50
6. Step 6: Final answer
   x = 278,491.52