Finding the Third Proportional to 891,032 and 1,287,388

Step by Step Solution

1. Step 1: Write the proportion equation
   891,032 : 1,287,388 = 1,287,388 : x
2. Step 2: Convert to fraction form
   891,032/1,287,388 = 1,287,388/x
3. Step 3: Cross multiply
   891,032x = 1,287,388 × 1,287,388
4. Step 4: Simplify right side
   891,032x = 1,657,367,862,544
5. Step 5: Solve for x
   x = 1,657,367,862,544/891,032
6. Step 6: Final answer
   x = 1,860,054.25