Finding the Third Proportional to 70,821 and 103,680

Step by Step Solution

1. Step 1: Write the proportion equation
   70,821 : 103,680 = 103,680 : x
2. Step 2: Convert to fraction form
   70,821/103,680 = 103,680/x
3. Step 3: Cross multiply
   70,821x = 103,680 × 103,680
4. Step 4: Simplify right side
   70,821x = 10,749,542,400
5. Step 5: Solve for x
   x = 10,749,542,400/70,821
6. Step 6: Final answer
   x = 151,784.67