Finding the Third Proportional to 470,421 and 710,010

Step by Step Solution

1. Step 1: Write the proportion equation
   470,421 : 710,010 = 710,010 : x
2. Step 2: Convert to fraction form
   470,421/710,010 = 710,010/x
3. Step 3: Cross multiply
   470,421x = 710,010 × 710,010
4. Step 4: Simplify right side
   470,421x = 504,114,200,100
5. Step 5: Solve for x
   x = 504,114,200,100/470,421
6. Step 6: Final answer
   x = 1,071,623.50