Finding the Third Proportional to 216,436 and 469,836.50

Step by Step Solution

1. Step 1: Write the proportion equation
   216,436 : 469,836.50 = 469,836.50 : x
2. Step 2: Convert to fraction form
   216,436/469,836.50 = 469,836.50/x
3. Step 3: Cross multiply
   216,436x = 469,836.50 × 469,836.50
4. Step 4: Simplify right side
   216,436x = 220,746,336,732.25
5. Step 5: Solve for x
   x = 220,746,336,732.25/216,436
6. Step 6: Final answer
   x = 1,019,915.06