Finding the Third Proportional to 910,420 and 1,406,697

Step by Step Solution

1. Step 1: Write the proportion equation
   910,420 : 1,406,697 = 1,406,697 : x
2. Step 2: Convert to fraction form
   910,420/1,406,697 = 1,406,697/x
3. Step 3: Cross multiply
   910,420x = 1,406,697 × 1,406,697
4. Step 4: Simplify right side
   910,420x = 1,978,796,449,809
5. Step 5: Solve for x
   x = 1,978,796,449,809/910,420
6. Step 6: Final answer
   x = 2,173,498.44