Finding the Third Proportional to 175,510.50 and 279,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   175,510.50 : 279,667.50 = 279,667.50 : x
2. Step 2: Convert to fraction form
   175,510.50/279,667.50 = 279,667.50/x
3. Step 3: Cross multiply
   175,510.50x = 279,667.50 × 279,667.50
4. Step 4: Simplify right side
   175,510.50x = 78,213,910,556.25
5. Step 5: Solve for x
   x = 78,213,910,556.25/175,510.50
6. Step 6: Final answer
   x = 445,636.65