Finding the Third Proportional to 16,991.02 and 36,715.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,991.02 : 36,715.78 = 36,715.78 : x
2. Step 2: Convert to fraction form
   16,991.02/36,715.78 = 36,715.78/x
3. Step 3: Cross multiply
   16,991.02x = 36,715.78 × 36,715.78
4. Step 4: Simplify right side
   16,991.02x = 1,348,048,592.80
5. Step 5: Solve for x
   x = 1,348,048,592.80/16,991.02
6. Step 6: Final answer
   x = 79,338.91