Finding the Third Proportional to 19,305 and 42,300.75

Step by Step Solution

1. Step 1: Write the proportion equation
   19,305 : 42,300.75 = 42,300.75 : x
2. Step 2: Convert to fraction form
   19,305/42,300.75 = 42,300.75/x
3. Step 3: Cross multiply
   19,305x = 42,300.75 × 42,300.75
4. Step 4: Simplify right side
   19,305x = 1,789,353,450.56
5. Step 5: Solve for x
   x = 1,789,353,450.56/19,305
6. Step 6: Final answer
   x = 92,688.60