Finding the Third Proportional to 891,035 and 1,287,392

Step by Step Solution

1. Step 1: Write the proportion equation
   891,035 : 1,287,392 = 1,287,392 : x
2. Step 2: Convert to fraction form
   891,035/1,287,392 = 1,287,392/x
3. Step 3: Cross multiply
   891,035x = 1,287,392 × 1,287,392
4. Step 4: Simplify right side
   891,035x = 1,657,378,161,664
5. Step 5: Solve for x
   x = 1,657,378,161,664/891,035
6. Step 6: Final answer
   x = 1,860,059.55