Finding the Third Proportional to 19,898.25 and 42,904.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,898.25 : 42,904.50 = 42,904.50 : x
2. Step 2: Convert to fraction form
   19,898.25/42,904.50 = 42,904.50/x
3. Step 3: Cross multiply
   19,898.25x = 42,904.50 × 42,904.50
4. Step 4: Simplify right side
   19,898.25x = 1,840,796,120.25
5. Step 5: Solve for x
   x = 1,840,796,120.25/19,898.25
6. Step 6: Final answer
   x = 92,510.45