Finding the Third Proportional to 511,669 and 715,705.50

Step by Step Solution

1. Step 1: Write the proportion equation
   511,669 : 715,705.50 = 715,705.50 : x
2. Step 2: Convert to fraction form
   511,669/715,705.50 = 715,705.50/x
3. Step 3: Cross multiply
   511,669x = 715,705.50 × 715,705.50
4. Step 4: Simplify right side
   511,669x = 512,234,362,730.25
5. Step 5: Solve for x
   x = 512,234,362,730.25/511,669
6. Step 6: Final answer
   x = 1,001,104.94