Finding the Third Proportional to 688,630 and 1,499,202

Step by Step Solution

1. Step 1: Write the proportion equation
   688,630 : 1,499,202 = 1,499,202 : x
2. Step 2: Convert to fraction form
   688,630/1,499,202 = 1,499,202/x
3. Step 3: Cross multiply
   688,630x = 1,499,202 × 1,499,202
4. Step 4: Simplify right side
   688,630x = 2,247,606,636,804
5. Step 5: Solve for x
   x = 2,247,606,636,804/688,630
6. Step 6: Final answer
   x = 3,263,881.38