Finding the Third Proportional to 37.76 and 70.03

Step by Step Solution

1. Step 1: Write the proportion equation
   37.76 : 70.03 = 70.03 : x
2. Step 2: Convert to fraction form
   37.76/70.03 = 70.03/x
3. Step 3: Cross multiply
   37.76x = 70.03 × 70.03
4. Step 4: Simplify right side
   37.76x = 4,904.38
5. Step 5: Solve for x
   x = 4,904.38/37.76
6. Step 6: Final answer
   x = 129.89