Finding the Third Proportional to 39,381.19 and 53,057.53

Step by Step Solution

1. Step 1: Write the proportion equation
   39,381.19 : 53,057.53 = 53,057.53 : x
2. Step 2: Convert to fraction form
   39,381.19/53,057.53 = 53,057.53/x
3. Step 3: Cross multiply
   39,381.19x = 53,057.53 × 53,057.53
4. Step 4: Simplify right side
   39,381.19x = 2,815,101,622.34
5. Step 5: Solve for x
   x = 2,815,101,622.34/39,381.19
6. Step 6: Final answer
   x = 71,483.41