Finding the Third Proportional to 658,972 and 1,438,796

Step by Step Solution

1. Step 1: Write the proportion equation
   658,972 : 1,438,796 = 1,438,796 : x
2. Step 2: Convert to fraction form
   658,972/1,438,796 = 1,438,796/x
3. Step 3: Cross multiply
   658,972x = 1,438,796 × 1,438,796
4. Step 4: Simplify right side
   658,972x = 2,070,133,929,616
5. Step 5: Solve for x
   x = 2,070,133,929,616/658,972
6. Step 6: Final answer
   x = 3,141,459.62