Finding the Third Proportional to 811,161 and 1,877,778

Step by Step Solution

1. Step 1: Write the proportion equation
   811,161 : 1,877,778 = 1,877,778 : x
2. Step 2: Convert to fraction form
   811,161/1,877,778 = 1,877,778/x
3. Step 3: Cross multiply
   811,161x = 1,877,778 × 1,877,778
4. Step 4: Simplify right side
   811,161x = 3,526,050,217,284
5. Step 5: Solve for x
   x = 3,526,050,217,284/811,161
6. Step 6: Final answer
   x = 4,346,917.83