Finding the Third Proportional to 33,580 and 70,620

Step by Step Solution

1. Step 1: Write the proportion equation
   33,580 : 70,620 = 70,620 : x
2. Step 2: Convert to fraction form
   33,580/70,620 = 70,620/x
3. Step 3: Cross multiply
   33,580x = 70,620 × 70,620
4. Step 4: Simplify right side
   33,580x = 4,987,184,400
5. Step 5: Solve for x
   x = 4,987,184,400/33,580
6. Step 6: Final answer
   x = 148,516.51