Finding the Third Proportional to 1,240,070 and 2,657,287

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,070 : 2,657,287 = 2,657,287 : x
2. Step 2: Convert to fraction form
   1,240,070/2,657,287 = 2,657,287/x
3. Step 3: Cross multiply
   1,240,070x = 2,657,287 × 2,657,287
4. Step 4: Simplify right side
   1,240,070x = 7,061,174,200,369
5. Step 5: Solve for x
   x = 7,061,174,200,369/1,240,070
6. Step 6: Final answer
   x = 5,694,173.88