Finding the Third Proportional to 284,116.50 and 612,513

Step by Step Solution

1. Step 1: Write the proportion equation
   284,116.50 : 612,513 = 612,513 : x
2. Step 2: Convert to fraction form
   284,116.50/612,513 = 612,513/x
3. Step 3: Cross multiply
   284,116.50x = 612,513 × 612,513
4. Step 4: Simplify right side
   284,116.50x = 375,172,175,169
5. Step 5: Solve for x
   x = 375,172,175,169/284,116.50
6. Step 6: Final answer
   x = 1,320,487.11