Finding the Third Proportional to 141,009 and 215,977.50

Step by Step Solution

1. Step 1: Write the proportion equation
   141,009 : 215,977.50 = 215,977.50 : x
2. Step 2: Convert to fraction form
   141,009/215,977.50 = 215,977.50/x
3. Step 3: Cross multiply
   141,009x = 215,977.50 × 215,977.50
4. Step 4: Simplify right side
   141,009x = 46,646,280,506.25
5. Step 5: Solve for x
   x = 46,646,280,506.25/141,009
6. Step 6: Final answer
   x = 330,803.57