Finding the Third Proportional to 34,043.63 and 72,142.31

Step by Step Solution

1. Step 1: Write the proportion equation
   34,043.63 : 72,142.31 = 72,142.31 : x
2. Step 2: Convert to fraction form
   34,043.63/72,142.31 = 72,142.31/x
3. Step 3: Cross multiply
   34,043.63x = 72,142.31 × 72,142.31
4. Step 4: Simplify right side
   34,043.63x = 5,204,513,252.85
5. Step 5: Solve for x
   x = 5,204,513,252.85/34,043.63
6. Step 6: Final answer
   x = 152,877.76