Finding the Third Proportional to 211,453.50 and 455,916

Step by Step Solution

1. Step 1: Write the proportion equation
   211,453.50 : 455,916 = 455,916 : x
2. Step 2: Convert to fraction form
   211,453.50/455,916 = 455,916/x
3. Step 3: Cross multiply
   211,453.50x = 455,916 × 455,916
4. Step 4: Simplify right side
   211,453.50x = 207,859,399,056
5. Step 5: Solve for x
   x = 207,859,399,056/211,453.50
6. Step 6: Final answer
   x = 983,002.88