Finding the Third Proportional to 1,445,434 and 3,112,861

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445,434 : 3,112,861 = 3,112,861 : x
2. Step 2: Convert to fraction form
   1,445,434/3,112,861 = 3,112,861/x
3. Step 3: Cross multiply
   1,445,434x = 3,112,861 × 3,112,861
4. Step 4: Simplify right side
   1,445,434x = 9,689,903,605,321
5. Step 5: Solve for x
   x = 9,689,903,605,321/1,445,434
6. Step 6: Final answer
   x = 6,703,802.18