Finding the Third Proportional to 1,295,378 and 1,961,139

Step by Step Solution

1. Step 1: Write the proportion equation
   1,295,378 : 1,961,139 = 1,961,139 : x
2. Step 2: Convert to fraction form
   1,295,378/1,961,139 = 1,961,139/x
3. Step 3: Cross multiply
   1,295,378x = 1,961,139 × 1,961,139
4. Step 4: Simplify right side
   1,295,378x = 3,846,066,177,321
5. Step 5: Solve for x
   x = 3,846,066,177,321/1,295,378
6. Step 6: Final answer
   x = 2,969,068.63