Finding the Third Proportional to 279,615 and 359,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   279,615 : 359,158.50 = 359,158.50 : x
2. Step 2: Convert to fraction form
   279,615/359,158.50 = 359,158.50/x
3. Step 3: Cross multiply
   279,615x = 359,158.50 × 359,158.50
4. Step 4: Simplify right side
   279,615x = 128,994,828,122.25
5. Step 5: Solve for x
   x = 128,994,828,122.25/279,615
6. Step 6: Final answer
   x = 461,330.14