Finding the Third Proportional to 362,461.50 and 777,411

Step by Step Solution

1. Step 1: Write the proportion equation
   362,461.50 : 777,411 = 777,411 : x
2. Step 2: Convert to fraction form
   362,461.50/777,411 = 777,411/x
3. Step 3: Cross multiply
   362,461.50x = 777,411 × 777,411
4. Step 4: Simplify right side
   362,461.50x = 604,367,862,921
5. Step 5: Solve for x
   x = 604,367,862,921/362,461.50
6. Step 6: Final answer
   x = 1,667,398.78