Finding the Third Proportional to 1,429,726 and 2,228,991

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429,726 : 2,228,991 = 2,228,991 : x
2. Step 2: Convert to fraction form
   1,429,726/2,228,991 = 2,228,991/x
3. Step 3: Cross multiply
   1,429,726x = 2,228,991 × 2,228,991
4. Step 4: Simplify right side
   1,429,726x = 4,968,400,878,081
5. Step 5: Solve for x
   x = 4,968,400,878,081/1,429,726
6. Step 6: Final answer
   x = 3,475,072.06