Finding the Third Proportional to 348,485 and 755,978

Step by Step Solution

1. Step 1: Write the proportion equation
   348,485 : 755,978 = 755,978 : x
2. Step 2: Convert to fraction form
   348,485/755,978 = 755,978/x
3. Step 3: Cross multiply
   348,485x = 755,978 × 755,978
4. Step 4: Simplify right side
   348,485x = 571,502,736,484
5. Step 5: Solve for x
   x = 571,502,736,484/348,485
6. Step 6: Final answer
   x = 1,639,963.66