Finding the Third Proportional to 4,187,204 and 9,200,172

Step by Step Solution

1. Step 1: Write the proportion equation
   4,187,204 : 9,200,172 = 9,200,172 : x
2. Step 2: Convert to fraction form
   4,187,204/9,200,172 = 9,200,172/x
3. Step 3: Cross multiply
   4,187,204x = 9,200,172 × 9,200,172
4. Step 4: Simplify right side
   4,187,204x = 84,643,164,829,584
5. Step 5: Solve for x
   x = 84,643,164,829,584/4,187,204
6. Step 6: Final answer
   x = 20,214,722.00