Finding the Third Proportional to 37,478.81 and 80,515.69

Step by Step Solution

1. Step 1: Write the proportion equation
   37,478.81 : 80,515.69 = 80,515.69 : x
2. Step 2: Convert to fraction form
   37,478.81/80,515.69 = 80,515.69/x
3. Step 3: Cross multiply
   37,478.81x = 80,515.69 × 80,515.69
4. Step 4: Simplify right side
   37,478.81x = 6,482,775,933.60
5. Step 5: Solve for x
   x = 6,482,775,933.60/37,478.81
6. Step 6: Final answer
   x = 172,971.75