Finding the Third Proportional to 457,420.50 and 706,869

Step by Step Solution

1. Step 1: Write the proportion equation
   457,420.50 : 706,869 = 706,869 : x
2. Step 2: Convert to fraction form
   457,420.50/706,869 = 706,869/x
3. Step 3: Cross multiply
   457,420.50x = 706,869 × 706,869
4. Step 4: Simplify right side
   457,420.50x = 499,663,783,161
5. Step 5: Solve for x
   x = 499,663,783,161/457,420.50
6. Step 6: Final answer
   x = 1,092,351.09