Finding the Third Proportional to 1,243,199 and 1,919,716

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,199 : 1,919,716 = 1,919,716 : x
2. Step 2: Convert to fraction form
   1,243,199/1,919,716 = 1,919,716/x
3. Step 3: Cross multiply
   1,243,199x = 1,919,716 × 1,919,716
4. Step 4: Simplify right side
   1,243,199x = 3,685,309,520,656
5. Step 5: Solve for x
   x = 3,685,309,520,656/1,243,199
6. Step 6: Final answer
   x = 2,964,376.19