Finding the Third Proportional to 607,807 and 1,322,642

Step by Step Solution

1. Step 1: Write the proportion equation
   607,807 : 1,322,642 = 1,322,642 : x
2. Step 2: Convert to fraction form
   607,807/1,322,642 = 1,322,642/x
3. Step 3: Cross multiply
   607,807x = 1,322,642 × 1,322,642
4. Step 4: Simplify right side
   607,807x = 1,749,381,860,164
5. Step 5: Solve for x
   x = 1,749,381,860,164/607,807
6. Step 6: Final answer
   x = 2,878,186.43