Finding the Third Proportional to 517,064.50 and 744,715.50

Step by Step Solution

1. Step 1: Write the proportion equation
   517,064.50 : 744,715.50 = 744,715.50 : x
2. Step 2: Convert to fraction form
   517,064.50/744,715.50 = 744,715.50/x
3. Step 3: Cross multiply
   517,064.50x = 744,715.50 × 744,715.50
4. Step 4: Simplify right side
   517,064.50x = 554,601,175,940.25
5. Step 5: Solve for x
   x = 554,601,175,940.25/517,064.50
6. Step 6: Final answer
   x = 1,072,595.73