Finding the Third Proportional to 606,212 and 909,404.50

Step by Step Solution

1. Step 1: Write the proportion equation
   606,212 : 909,404.50 = 909,404.50 : x
2. Step 2: Convert to fraction form
   606,212/909,404.50 = 909,404.50/x
3. Step 3: Cross multiply
   606,212x = 909,404.50 × 909,404.50
4. Step 4: Simplify right side
   606,212x = 827,016,544,620.25
5. Step 5: Solve for x
   x = 827,016,544,620.25/606,212
6. Step 6: Final answer
   x = 1,364,236.51