Finding the Third Proportional to 43,418.53 and 64,945.55

Step by Step Solution

1. Step 1: Write the proportion equation
   43,418.53 : 64,945.55 = 64,945.55 : x
2. Step 2: Convert to fraction form
   43,418.53/64,945.55 = 64,945.55/x
3. Step 3: Cross multiply
   43,418.53x = 64,945.55 × 64,945.55
4. Step 4: Simplify right side
   43,418.53x = 4,217,924,058.89
5. Step 5: Solve for x
   x = 4,217,924,058.89/43,418.53
6. Step 6: Final answer
   x = 97,145.71