Finding the Third Proportional to 300,000.50 and 633,724

Step by Step Solution

1. Step 1: Write the proportion equation
   300,000.50 : 633,724 = 633,724 : x
2. Step 2: Convert to fraction form
   300,000.50/633,724 = 633,724/x
3. Step 3: Cross multiply
   300,000.50x = 633,724 × 633,724
4. Step 4: Simplify right side
   300,000.50x = 401,606,108,176
5. Step 5: Solve for x
   x = 401,606,108,176/300,000.50
6. Step 6: Final answer
   x = 1,338,684.80