Finding the Third Proportional to 869,910 and 1,271,297

Step by Step Solution

1. Step 1: Write the proportion equation
   869,910 : 1,271,297 = 1,271,297 : x
2. Step 2: Convert to fraction form
   869,910/1,271,297 = 1,271,297/x
3. Step 3: Cross multiply
   869,910x = 1,271,297 × 1,271,297
4. Step 4: Simplify right side
   869,910x = 1,616,196,062,209
5. Step 5: Solve for x
   x = 1,616,196,062,209/869,910
6. Step 6: Final answer
   x = 1,857,888.82