Finding the Third Proportional to 72,939 and 104,302.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,939 : 104,302.50 = 104,302.50 : x
2. Step 2: Convert to fraction form
   72,939/104,302.50 = 104,302.50/x
3. Step 3: Cross multiply
   72,939x = 104,302.50 × 104,302.50
4. Step 4: Simplify right side
   72,939x = 10,879,011,506.25
5. Step 5: Solve for x
   x = 10,879,011,506.25/72,939
6. Step 6: Final answer
   x = 149,152.19