Finding the Third Proportional to 215,022.09 and 341,602.31

Step by Step Solution

1. Step 1: Write the proportion equation
   215,022.09 : 341,602.31 = 341,602.31 : x
2. Step 2: Convert to fraction form
   215,022.09/341,602.31 = 341,602.31/x
3. Step 3: Cross multiply
   215,022.09x = 341,602.31 × 341,602.31
4. Step 4: Simplify right side
   215,022.09x = 116,692,139,905.35
5. Step 5: Solve for x
   x = 116,692,139,905.35/215,022.09
6. Step 6: Final answer
   x = 542,698.37