Finding the Third Proportional to 19,655.16 and 42,438.94

Step by Step Solution

1. Step 1: Write the proportion equation
   19,655.16 : 42,438.94 = 42,438.94 : x
2. Step 2: Convert to fraction form
   19,655.16/42,438.94 = 42,438.94/x
3. Step 3: Cross multiply
   19,655.16x = 42,438.94 × 42,438.94
4. Step 4: Simplify right side
   19,655.16x = 1,801,063,416.13
5. Step 5: Solve for x
   x = 1,801,063,416.13/19,655.16
6. Step 6: Final answer
   x = 91,633.13