Finding the Third Proportional to 312,201.50 and 676,892

Step by Step Solution

1. Step 1: Write the proportion equation
   312,201.50 : 676,892 = 676,892 : x
2. Step 2: Convert to fraction form
   312,201.50/676,892 = 676,892/x
3. Step 3: Cross multiply
   312,201.50x = 676,892 × 676,892
4. Step 4: Simplify right side
   312,201.50x = 458,182,779,664
5. Step 5: Solve for x
   x = 458,182,779,664/312,201.50
6. Step 6: Final answer
   x = 1,467,586.73