Finding the Third Proportional to 890,067.75 and 1,379,080.50

Step by Step Solution

1. Step 1: Write the proportion equation
   890,067.75 : 1,379,080.50 = 1,379,080.50 : x
2. Step 2: Convert to fraction form
   890,067.75/1,379,080.50 = 1,379,080.50/x
3. Step 3: Cross multiply
   890,067.75x = 1,379,080.50 × 1,379,080.50
4. Step 4: Simplify right side
   890,067.75x = 1,901,863,025,480.25
5. Step 5: Solve for x
   x = 1,901,863,025,480.25/890,067.75
6. Step 6: Final answer
   x = 2,136,762.09