Finding the Third Proportional to 699,120 and 1,531,630

Step by Step Solution

1. Step 1: Write the proportion equation
   699,120 : 1,531,630 = 1,531,630 : x
2. Step 2: Convert to fraction form
   699,120/1,531,630 = 1,531,630/x
3. Step 3: Cross multiply
   699,120x = 1,531,630 × 1,531,630
4. Step 4: Simplify right side
   699,120x = 2,345,890,456,900
5. Step 5: Solve for x
   x = 2,345,890,456,900/699,120
6. Step 6: Final answer
   x = 3,355,490.41