Finding the Third Proportional to 607,857 and 1,407,080

Step by Step Solution

1. Step 1: Write the proportion equation
   607,857 : 1,407,080 = 1,407,080 : x
2. Step 2: Convert to fraction form
   607,857/1,407,080 = 1,407,080/x
3. Step 3: Cross multiply
   607,857x = 1,407,080 × 1,407,080
4. Step 4: Simplify right side
   607,857x = 1,979,874,126,400
5. Step 5: Solve for x
   x = 1,979,874,126,400/607,857
6. Step 6: Final answer
   x = 3,257,137.99