Finding the Third Proportional to 1,245,213 and 1,867,833

Step by Step Solution

1. Step 1: Write the proportion equation
   1,245,213 : 1,867,833 = 1,867,833 : x
2. Step 2: Convert to fraction form
   1,245,213/1,867,833 = 1,867,833/x
3. Step 3: Cross multiply
   1,245,213x = 1,867,833 × 1,867,833
4. Step 4: Simplify right side
   1,245,213x = 3,488,800,115,889
5. Step 5: Solve for x
   x = 3,488,800,115,889/1,245,213
6. Step 6: Final answer
   x = 2,801,769.75