Finding the Third Proportional to 19,130.34 and 40,538.81

Step by Step Solution

1. Step 1: Write the proportion equation
   19,130.34 : 40,538.81 = 40,538.81 : x
2. Step 2: Convert to fraction form
   19,130.34/40,538.81 = 40,538.81/x
3. Step 3: Cross multiply
   19,130.34x = 40,538.81 × 40,538.81
4. Step 4: Simplify right side
   19,130.34x = 1,643,395,318.91
5. Step 5: Solve for x
   x = 1,643,395,318.91/19,130.34
6. Step 6: Final answer
   x = 85,905.16