Finding the Third Proportional to 19,518.47 and 42,314.91

Step by Step Solution

1. Step 1: Write the proportion equation
   19,518.47 : 42,314.91 = 42,314.91 : x
2. Step 2: Convert to fraction form
   19,518.47/42,314.91 = 42,314.91/x
3. Step 3: Cross multiply
   19,518.47x = 42,314.91 × 42,314.91
4. Step 4: Simplify right side
   19,518.47x = 1,790,551,290.95
5. Step 5: Solve for x
   x = 1,790,551,290.95/19,518.47
6. Step 6: Final answer
   x = 91,736.26