Finding the Third Proportional to 19,499.63 and 42,112.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,499.63 : 42,112.88 = 42,112.88 : x
2. Step 2: Convert to fraction form
   19,499.63/42,112.88 = 42,112.88/x
3. Step 3: Cross multiply
   19,499.63x = 42,112.88 × 42,112.88
4. Step 4: Simplify right side
   19,499.63x = 1,773,494,240.77
5. Step 5: Solve for x
   x = 1,773,494,240.77/19,499.63
6. Step 6: Final answer
   x = 90,950.17