Finding the Third Proportional to 700,380 and 1,086,570

Step by Step Solution

1. Step 1: Write the proportion equation
   700,380 : 1,086,570 = 1,086,570 : x
2. Step 2: Convert to fraction form
   700,380/1,086,570 = 1,086,570/x
3. Step 3: Cross multiply
   700,380x = 1,086,570 × 1,086,570
4. Step 4: Simplify right side
   700,380x = 1,180,634,364,900
5. Step 5: Solve for x
   x = 1,180,634,364,900/700,380
6. Step 6: Final answer
   x = 1,685,705.42