Finding the Third Proportional to 357,716 and 758,078.50

Step by Step Solution

1. Step 1: Write the proportion equation
   357,716 : 758,078.50 = 758,078.50 : x
2. Step 2: Convert to fraction form
   357,716/758,078.50 = 758,078.50/x
3. Step 3: Cross multiply
   357,716x = 758,078.50 × 758,078.50
4. Step 4: Simplify right side
   357,716x = 574,683,012,162.25
5. Step 5: Solve for x
   x = 574,683,012,162.25/357,716
6. Step 6: Final answer
   x = 1,606,534.27