Finding the Third Proportional to 208,567.50 and 455,406

Step by Step Solution

1. Step 1: Write the proportion equation
   208,567.50 : 455,406 = 455,406 : x
2. Step 2: Convert to fraction form
   208,567.50/455,406 = 455,406/x
3. Step 3: Cross multiply
   208,567.50x = 455,406 × 455,406
4. Step 4: Simplify right side
   208,567.50x = 207,394,624,836
5. Step 5: Solve for x
   x = 207,394,624,836/208,567.50
6. Step 6: Final answer
   x = 994,376.52