Finding the Third Proportional to 1,628,925 and 2,142,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,628,925 : 2,142,067.50 = 2,142,067.50 : x
2. Step 2: Convert to fraction form
   1,628,925/2,142,067.50 = 2,142,067.50/x
3. Step 3: Cross multiply
   1,628,925x = 2,142,067.50 × 2,142,067.50
4. Step 4: Simplify right side
   1,628,925x = 4,588,453,174,556.25
5. Step 5: Solve for x
   x = 4,588,453,174,556.25/1,628,925
6. Step 6: Final answer
   x = 2,816,859.69