Finding the Third Proportional to 896,978 and 1,390,299

Step by Step Solution

1. Step 1: Write the proportion equation
   896,978 : 1,390,299 = 1,390,299 : x
2. Step 2: Convert to fraction form
   896,978/1,390,299 = 1,390,299/x
3. Step 3: Cross multiply
   896,978x = 1,390,299 × 1,390,299
4. Step 4: Simplify right side
   896,978x = 1,932,931,309,401
5. Step 5: Solve for x
   x = 1,932,931,309,401/896,978
6. Step 6: Final answer
   x = 2,154,937.26