Finding the Third Proportional to 693,216 and 1,489,600

Step by Step Solution

1. Step 1: Write the proportion equation
   693,216 : 1,489,600 = 1,489,600 : x
2. Step 2: Convert to fraction form
   693,216/1,489,600 = 1,489,600/x
3. Step 3: Cross multiply
   693,216x = 1,489,600 × 1,489,600
4. Step 4: Simplify right side
   693,216x = 2,218,908,160,000
5. Step 5: Solve for x
   x = 2,218,908,160,000/693,216
6. Step 6: Final answer
   x = 3,200,890.00