Finding the Third Proportional to 27,139.50 and 58,920.19

Step by Step Solution

1. Step 1: Write the proportion equation
   27,139.50 : 58,920.19 = 58,920.19 : x
2. Step 2: Convert to fraction form
   27,139.50/58,920.19 = 58,920.19/x
3. Step 3: Cross multiply
   27,139.50x = 58,920.19 × 58,920.19
4. Step 4: Simplify right side
   27,139.50x = 3,471,588,495.04
5. Step 5: Solve for x
   x = 3,471,588,495.04/27,139.50
6. Step 6: Final answer
   x = 127,916.45