Finding the Third Proportional to 1,406,303 and 1,991,211

Step by Step Solution

1. Step 1: Write the proportion equation
   1,406,303 : 1,991,211 = 1,991,211 : x
2. Step 2: Convert to fraction form
   1,406,303/1,991,211 = 1,991,211/x
3. Step 3: Cross multiply
   1,406,303x = 1,991,211 × 1,991,211
4. Step 4: Simplify right side
   1,406,303x = 3,964,921,246,521
5. Step 5: Solve for x
   x = 3,964,921,246,521/1,406,303
6. Step 6: Final answer
   x = 2,819,393.29