Finding the Third Proportional to 213,166.69 and 455,869.69

Step by Step Solution

1. Step 1: Write the proportion equation
   213,166.69 : 455,869.69 = 455,869.69 : x
2. Step 2: Convert to fraction form
   213,166.69/455,869.69 = 455,869.69/x
3. Step 3: Cross multiply
   213,166.69x = 455,869.69 × 455,869.69
4. Step 4: Simplify right side
   213,166.69x = 207,817,171,981.35
5. Step 5: Solve for x
   x = 207,817,171,981.35/213,166.69
6. Step 6: Final answer
   x = 974,904.54