Finding the Third Proportional to 273,623 and 437,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   273,623 : 437,105.50 = 437,105.50 : x
2. Step 2: Convert to fraction form
   273,623/437,105.50 = 437,105.50/x
3. Step 3: Cross multiply
   273,623x = 437,105.50 × 437,105.50
4. Step 4: Simplify right side
   273,623x = 191,061,218,130.25
5. Step 5: Solve for x
   x = 191,061,218,130.25/273,623
6. Step 6: Final answer
   x = 698,264.47