Finding the Third Proportional to 473,690 and 709,300

Step by Step Solution

1. Step 1: Write the proportion equation
   473,690 : 709,300 = 709,300 : x
2. Step 2: Convert to fraction form
   473,690/709,300 = 709,300/x
3. Step 3: Cross multiply
   473,690x = 709,300 × 709,300
4. Step 4: Simplify right side
   473,690x = 503,106,490,000
5. Step 5: Solve for x
   x = 503,106,490,000/473,690
6. Step 6: Final answer
   x = 1,062,100.72