Finding the Third Proportional to 517,378.50 and 772,881

Step by Step Solution

1. Step 1: Write the proportion equation
   517,378.50 : 772,881 = 772,881 : x
2. Step 2: Convert to fraction form
   517,378.50/772,881 = 772,881/x
3. Step 3: Cross multiply
   517,378.50x = 772,881 × 772,881
4. Step 4: Simplify right side
   517,378.50x = 597,345,040,161
5. Step 5: Solve for x
   x = 597,345,040,161/517,378.50
6. Step 6: Final answer
   x = 1,154,561.00