Finding the Third Proportional to 369,936 and 553,891.50

Step by Step Solution

1. Step 1: Write the proportion equation
   369,936 : 553,891.50 = 553,891.50 : x
2. Step 2: Convert to fraction form
   369,936/553,891.50 = 553,891.50/x
3. Step 3: Cross multiply
   369,936x = 553,891.50 × 553,891.50
4. Step 4: Simplify right side
   369,936x = 306,795,793,772.25
5. Step 5: Solve for x
   x = 306,795,793,772.25/369,936
6. Step 6: Final answer
   x = 829,321.27