Finding the Third Proportional to 37,690.50 and 55,412

Step by Step Solution

1. Step 1: Write the proportion equation
   37,690.50 : 55,412 = 55,412 : x
2. Step 2: Convert to fraction form
   37,690.50/55,412 = 55,412/x
3. Step 3: Cross multiply
   37,690.50x = 55,412 × 55,412
4. Step 4: Simplify right side
   37,690.50x = 3,070,489,744
5. Step 5: Solve for x
   x = 3,070,489,744/37,690.50
6. Step 6: Final answer
   x = 81,465.88