Finding the Third Proportional to 726,543 and 997,345.50

Step by Step Solution

1. Step 1: Write the proportion equation
   726,543 : 997,345.50 = 997,345.50 : x
2. Step 2: Convert to fraction form
   726,543/997,345.50 = 997,345.50/x
3. Step 3: Cross multiply
   726,543x = 997,345.50 × 997,345.50
4. Step 4: Simplify right side
   726,543x = 994,698,046,370.25
5. Step 5: Solve for x
   x = 994,698,046,370.25/726,543
6. Step 6: Final answer
   x = 1,369,083.52