Finding the Third Proportional to 612,266 and 920,734.50

Step by Step Solution

1. Step 1: Write the proportion equation
   612,266 : 920,734.50 = 920,734.50 : x
2. Step 2: Convert to fraction form
   612,266/920,734.50 = 920,734.50/x
3. Step 3: Cross multiply
   612,266x = 920,734.50 × 920,734.50
4. Step 4: Simplify right side
   612,266x = 847,752,019,490.25
5. Step 5: Solve for x
   x = 847,752,019,490.25/612,266
6. Step 6: Final answer
   x = 1,384,613.91