Finding the Third Proportional to 377,499 and 798,721.50

Step by Step Solution

1. Step 1: Write the proportion equation
   377,499 : 798,721.50 = 798,721.50 : x
2. Step 2: Convert to fraction form
   377,499/798,721.50 = 798,721.50/x
3. Step 3: Cross multiply
   377,499x = 798,721.50 × 798,721.50
4. Step 4: Simplify right side
   377,499x = 637,956,034,562.25
5. Step 5: Solve for x
   x = 637,956,034,562.25/377,499
6. Step 6: Final answer
   x = 1,689,954.24