Finding the Third Proportional to 431,192 and 907,067.50

Step by Step Solution

1. Step 1: Write the proportion equation
   431,192 : 907,067.50 = 907,067.50 : x
2. Step 2: Convert to fraction form
   431,192/907,067.50 = 907,067.50/x
3. Step 3: Cross multiply
   431,192x = 907,067.50 × 907,067.50
4. Step 4: Simplify right side
   431,192x = 822,771,449,556.25
5. Step 5: Solve for x
   x = 822,771,449,556.25/431,192
6. Step 6: Final answer
   x = 1,908,132.46