Finding the Third Proportional to 19,621 and 30,007.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,621 : 30,007.50 = 30,007.50 : x
2. Step 2: Convert to fraction form
   19,621/30,007.50 = 30,007.50/x
3. Step 3: Cross multiply
   19,621x = 30,007.50 × 30,007.50
4. Step 4: Simplify right side
   19,621x = 900,450,056.25
5. Step 5: Solve for x
   x = 900,450,056.25/19,621
6. Step 6: Final answer
   x = 45,892.16