Finding the Third Proportional to 128,300 and 184,811.50

Step by Step Solution

1. Step 1: Write the proportion equation
   128,300 : 184,811.50 = 184,811.50 : x
2. Step 2: Convert to fraction form
   128,300/184,811.50 = 184,811.50/x
3. Step 3: Cross multiply
   128,300x = 184,811.50 × 184,811.50
4. Step 4: Simplify right side
   128,300x = 34,155,290,532.25
5. Step 5: Solve for x
   x = 34,155,290,532.25/128,300
6. Step 6: Final answer
   x = 266,214.27