Finding the Third Proportional to 1,345,428 and 2,077,631

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345,428 : 2,077,631 = 2,077,631 : x
2. Step 2: Convert to fraction form
   1,345,428/2,077,631 = 2,077,631/x
3. Step 3: Cross multiply
   1,345,428x = 2,077,631 × 2,077,631
4. Step 4: Simplify right side
   1,345,428x = 4,316,550,572,161
5. Step 5: Solve for x
   x = 4,316,550,572,161/1,345,428
6. Step 6: Final answer
   x = 3,208,310.35