Finding the Third Proportional to 215,490 and 341,050.50

Step by Step Solution

1. Step 1: Write the proportion equation
   215,490 : 341,050.50 = 341,050.50 : x
2. Step 2: Convert to fraction form
   215,490/341,050.50 = 341,050.50/x
3. Step 3: Cross multiply
   215,490x = 341,050.50 × 341,050.50
4. Step 4: Simplify right side
   215,490x = 116,315,443,550.25
5. Step 5: Solve for x
   x = 116,315,443,550.25/215,490
6. Step 6: Final answer
   x = 539,771.89