Finding the Third Proportional to 58,243 and 127,390.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,243 : 127,390.50 = 127,390.50 : x
2. Step 2: Convert to fraction form
   58,243/127,390.50 = 127,390.50/x
3. Step 3: Cross multiply
   58,243x = 127,390.50 × 127,390.50
4. Step 4: Simplify right side
   58,243x = 16,228,339,490.25
5. Step 5: Solve for x
   x = 16,228,339,490.25/58,243
6. Step 6: Final answer
   x = 278,631.59