Finding the Third Proportional to 19,998.50 and 42,463

Step by Step Solution

1. Step 1: Write the proportion equation
   19,998.50 : 42,463 = 42,463 : x
2. Step 2: Convert to fraction form
   19,998.50/42,463 = 42,463/x
3. Step 3: Cross multiply
   19,998.50x = 42,463 × 42,463
4. Step 4: Simplify right side
   19,998.50x = 1,803,106,369
5. Step 5: Solve for x
   x = 1,803,106,369/19,998.50
6. Step 6: Final answer
   x = 90,162.08