Finding the Third Proportional to 661,648 and 1,435,318

Step by Step Solution

1. Step 1: Write the proportion equation
   661,648 : 1,435,318 = 1,435,318 : x
2. Step 2: Convert to fraction form
   661,648/1,435,318 = 1,435,318/x
3. Step 3: Cross multiply
   661,648x = 1,435,318 × 1,435,318
4. Step 4: Simplify right side
   661,648x = 2,060,137,761,124
5. Step 5: Solve for x
   x = 2,060,137,761,124/661,648
6. Step 6: Final answer
   x = 3,113,646.17