Finding the Third Proportional to 342,978 and 753,833

Step by Step Solution

1. Step 1: Write the proportion equation
   342,978 : 753,833 = 753,833 : x
2. Step 2: Convert to fraction form
   342,978/753,833 = 753,833/x
3. Step 3: Cross multiply
   342,978x = 753,833 × 753,833
4. Step 4: Simplify right side
   342,978x = 568,264,191,889
5. Step 5: Solve for x
   x = 568,264,191,889/342,978
6. Step 6: Final answer
   x = 1,656,853.19