Finding the Third Proportional to 147,713.63 and 215,110.69

Step by Step Solution

1. Step 1: Write the proportion equation
   147,713.63 : 215,110.69 = 215,110.69 : x
2. Step 2: Convert to fraction form
   147,713.63/215,110.69 = 215,110.69/x
3. Step 3: Cross multiply
   147,713.63x = 215,110.69 × 215,110.69
4. Step 4: Simplify right side
   147,713.63x = 46,272,607,876.72
5. Step 5: Solve for x
   x = 46,272,607,876.72/147,713.63
6. Step 6: Final answer
   x = 313,258.90