Finding the Third Proportional to 273,578 and 437,047.50

Step by Step Solution

1. Step 1: Write the proportion equation
   273,578 : 437,047.50 = 437,047.50 : x
2. Step 2: Convert to fraction form
   273,578/437,047.50 = 437,047.50/x
3. Step 3: Cross multiply
   273,578x = 437,047.50 × 437,047.50
4. Step 4: Simplify right side
   273,578x = 191,010,517,256.25
5. Step 5: Solve for x
   x = 191,010,517,256.25/273,578
6. Step 6: Final answer
   x = 698,194.00