Finding the Third Proportional to 362,518.50 and 777,543

Step by Step Solution

1. Step 1: Write the proportion equation
   362,518.50 : 777,543 = 777,543 : x
2. Step 2: Convert to fraction form
   362,518.50/777,543 = 777,543/x
3. Step 3: Cross multiply
   362,518.50x = 777,543 × 777,543
4. Step 4: Simplify right side
   362,518.50x = 604,573,116,849
5. Step 5: Solve for x
   x = 604,573,116,849/362,518.50
6. Step 6: Final answer
   x = 1,667,702.80