Finding the Third Proportional to 912,000 and 1,978,560

Step by Step Solution

1. Step 1: Write the proportion equation
   912,000 : 1,978,560 = 1,978,560 : x
2. Step 2: Convert to fraction form
   912,000/1,978,560 = 1,978,560/x
3. Step 3: Cross multiply
   912,000x = 1,978,560 × 1,978,560
4. Step 4: Simplify right side
   912,000x = 3,914,699,673,600
5. Step 5: Solve for x
   x = 3,914,699,673,600/912,000
6. Step 6: Final answer
   x = 4,292,433.85