Finding the Third Proportional to 2,021,294 and 4,378,972

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021,294 : 4,378,972 = 4,378,972 : x
2. Step 2: Convert to fraction form
   2,021,294/4,378,972 = 4,378,972/x
3. Step 3: Cross multiply
   2,021,294x = 4,378,972 × 4,378,972
4. Step 4: Simplify right side
   2,021,294x = 19,175,395,776,784
5. Step 5: Solve for x
   x = 19,175,395,776,784/2,021,294
6. Step 6: Final answer
   x = 9,486,693.07