Finding the Third Proportional to 910,412 and 1,406,687

Step by Step Solution

1. Step 1: Write the proportion equation
   910,412 : 1,406,687 = 1,406,687 : x
2. Step 2: Convert to fraction form
   910,412/1,406,687 = 1,406,687/x
3. Step 3: Cross multiply
   910,412x = 1,406,687 × 1,406,687
4. Step 4: Simplify right side
   910,412x = 1,978,768,315,969
5. Step 5: Solve for x
   x = 1,978,768,315,969/910,412
6. Step 6: Final answer
   x = 2,173,486.64