Finding the Third Proportional to 39,912 and 83,960

Step by Step Solution

1. Step 1: Write the proportion equation
   39,912 : 83,960 = 83,960 : x
2. Step 2: Convert to fraction form
   39,912/83,960 = 83,960/x
3. Step 3: Cross multiply
   39,912x = 83,960 × 83,960
4. Step 4: Simplify right side
   39,912x = 7,049,281,600
5. Step 5: Solve for x
   x = 7,049,281,600/39,912
6. Step 6: Final answer
   x = 176,620.61