Finding the Third Proportional to 18,085.78 and 37,432.13

Step by Step Solution

1. Step 1: Write the proportion equation
   18,085.78 : 37,432.13 = 37,432.13 : x
2. Step 2: Convert to fraction form
   18,085.78/37,432.13 = 37,432.13/x
3. Step 3: Cross multiply
   18,085.78x = 37,432.13 × 37,432.13
4. Step 4: Simplify right side
   18,085.78x = 1,401,163,982.02
5. Step 5: Solve for x
   x = 1,401,163,982.02/18,085.78
6. Step 6: Final answer
   x = 77,473.24