Finding the Third Proportional to 19,419.38 and 42,473.63

Step by Step Solution

1. Step 1: Write the proportion equation
   19,419.38 : 42,473.63 = 42,473.63 : x
2. Step 2: Convert to fraction form
   19,419.38/42,473.63 = 42,473.63/x
3. Step 3: Cross multiply
   19,419.38x = 42,473.63 × 42,473.63
4. Step 4: Simplify right side
   19,419.38x = 1,804,008,820.64
5. Step 5: Solve for x
   x = 1,804,008,820.64/19,419.38
6. Step 6: Final answer
   x = 92,897.37