Finding the Third Proportional to 38,492.72 and 56,406.38

Step by Step Solution

1. Step 1: Write the proportion equation
   38,492.72 : 56,406.38 = 56,406.38 : x
2. Step 2: Convert to fraction form
   38,492.72/56,406.38 = 56,406.38/x
3. Step 3: Cross multiply
   38,492.72x = 56,406.38 × 56,406.38
4. Step 4: Simplify right side
   38,492.72x = 3,181,679,140.64
5. Step 5: Solve for x
   x = 3,181,679,140.64/38,492.72
6. Step 6: Final answer
   x = 82,656.65