Finding the Third Proportional to 199,732.50 and 438,264

Step by Step Solution

1. Step 1: Write the proportion equation
   199,732.50 : 438,264 = 438,264 : x
2. Step 2: Convert to fraction form
   199,732.50/438,264 = 438,264/x
3. Step 3: Cross multiply
   199,732.50x = 438,264 × 438,264
4. Step 4: Simplify right side
   199,732.50x = 192,075,333,696
5. Step 5: Solve for x
   x = 192,075,333,696/199,732.50
6. Step 6: Final answer
   x = 961,662.89