Finding the Third Proportional to 346,978 and 756,830

Step by Step Solution

1. Step 1: Write the proportion equation
   346,978 : 756,830 = 756,830 : x
2. Step 2: Convert to fraction form
   346,978/756,830 = 756,830/x
3. Step 3: Cross multiply
   346,978x = 756,830 × 756,830
4. Step 4: Simplify right side
   346,978x = 572,791,648,900
5. Step 5: Solve for x
   x = 572,791,648,900/346,978
6. Step 6: Final answer
   x = 1,650,801.06