Finding the Third Proportional to 358,968 and 531,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   358,968 : 531,358.50 = 531,358.50 : x
2. Step 2: Convert to fraction form
   358,968/531,358.50 = 531,358.50/x
3. Step 3: Cross multiply
   358,968x = 531,358.50 × 531,358.50
4. Step 4: Simplify right side
   358,968x = 282,341,855,522.25
5. Step 5: Solve for x
   x = 282,341,855,522.25/358,968
6. Step 6: Final answer
   x = 786,537.67