Finding the Third Proportional to 607,478 and 1,406,320

Step by Step Solution

1. Step 1: Write the proportion equation
   607,478 : 1,406,320 = 1,406,320 : x
2. Step 2: Convert to fraction form
   607,478/1,406,320 = 1,406,320/x
3. Step 3: Cross multiply
   607,478x = 1,406,320 × 1,406,320
4. Step 4: Simplify right side
   607,478x = 1,977,735,942,400
5. Step 5: Solve for x
   x = 1,977,735,942,400/607,478
6. Step 6: Final answer
   x = 3,255,650.32