Finding the Third Proportional to 470,504 and 710,139

Step by Step Solution

1. Step 1: Write the proportion equation
   470,504 : 710,139 = 710,139 : x
2. Step 2: Convert to fraction form
   470,504/710,139 = 710,139/x
3. Step 3: Cross multiply
   470,504x = 710,139 × 710,139
4. Step 4: Simplify right side
   470,504x = 504,297,399,321
5. Step 5: Solve for x
   x = 504,297,399,321/470,504
6. Step 6: Final answer
   x = 1,071,823.83