Finding the Third Proportional to 438,204 and 920,683.50

Step by Step Solution

1. Step 1: Write the proportion equation
   438,204 : 920,683.50 = 920,683.50 : x
2. Step 2: Convert to fraction form
   438,204/920,683.50 = 920,683.50/x
3. Step 3: Cross multiply
   438,204x = 920,683.50 × 920,683.50
4. Step 4: Simplify right side
   438,204x = 847,658,107,172.25
5. Step 5: Solve for x
   x = 847,658,107,172.25/438,204
6. Step 6: Final answer
   x = 1,934,391.53