Finding the Third Proportional to 477,652.50 and 696,789

Step by Step Solution

1. Step 1: Write the proportion equation
   477,652.50 : 696,789 = 696,789 : x
2. Step 2: Convert to fraction form
   477,652.50/696,789 = 696,789/x
3. Step 3: Cross multiply
   477,652.50x = 696,789 × 696,789
4. Step 4: Simplify right side
   477,652.50x = 485,514,910,521
5. Step 5: Solve for x
   x = 485,514,910,521/477,652.50
6. Step 6: Final answer
   x = 1,016,460.52