Finding the Third Proportional to 201,288.50 and 438,748

Step by Step Solution

1. Step 1: Write the proportion equation
   201,288.50 : 438,748 = 438,748 : x
2. Step 2: Convert to fraction form
   201,288.50/438,748 = 438,748/x
3. Step 3: Cross multiply
   201,288.50x = 438,748 × 438,748
4. Step 4: Simplify right side
   201,288.50x = 192,499,807,504
5. Step 5: Solve for x
   x = 192,499,807,504/201,288.50
6. Step 6: Final answer
   x = 956,337.83