Finding the Third Proportional to 470,611.69 and 706,990.78

Step by Step Solution

1. Step 1: Write the proportion equation
   470,611.69 : 706,990.78 = 706,990.78 : x
2. Step 2: Convert to fraction form
   470,611.69/706,990.78 = 706,990.78/x
3. Step 3: Cross multiply
   470,611.69x = 706,990.78 × 706,990.78
4. Step 4: Simplify right side
   470,611.69x = 499,835,964,772.49
5. Step 5: Solve for x
   x = 499,835,964,772.49/470,611.69
6. Step 6: Final answer
   x = 1,062,098.49