Finding the Third Proportional to 25,930.13 and 42,985.69

Step by Step Solution

1. Step 1: Write the proportion equation
   25,930.13 : 42,985.69 = 42,985.69 : x
2. Step 2: Convert to fraction form
   25,930.13/42,985.69 = 42,985.69/x
3. Step 3: Cross multiply
   25,930.13x = 42,985.69 × 42,985.69
4. Step 4: Simplify right side
   25,930.13x = 1,847,769,329.85
5. Step 5: Solve for x
   x = 1,847,769,329.85/25,930.13
6. Step 6: Final answer
   x = 71,259.56