Finding the Third Proportional to 308,406,852 and 673,070,172

Step by Step Solution

1. Step 1: Write the proportion equation
   308,406,852 : 673,070,172 = 673,070,172 : x
2. Step 2: Convert to fraction form
   308,406,852/673,070,172 = 673,070,172/x
3. Step 3: Cross multiply
   308,406,852x = 673,070,172 × 673,070,172
4. Step 4: Simplify right side
   308,406,852x = 453,023,456,436,109,568
5. Step 5: Solve for x
   x = 453,023,456,436,109,568/308,406,852
6. Step 6: Final answer
   x = 1,468,915,017.61