Finding the Third Proportional to 365,450 and 562,438.50

Step by Step Solution

1. Step 1: Write the proportion equation
   365,450 : 562,438.50 = 562,438.50 : x
2. Step 2: Convert to fraction form
   365,450/562,438.50 = 562,438.50/x
3. Step 3: Cross multiply
   365,450x = 562,438.50 × 562,438.50
4. Step 4: Simplify right side
   365,450x = 316,337,066,282.25
5. Step 5: Solve for x
   x = 316,337,066,282.25/365,450
6. Step 6: Final answer
   x = 865,609.70