Finding the Third Proportional to 72,598.13 and 109,991.53

Step by Step Solution

1. Step 1: Write the proportion equation
   72,598.13 : 109,991.53 = 109,991.53 : x
2. Step 2: Convert to fraction form
   72,598.13/109,991.53 = 109,991.53/x
3. Step 3: Cross multiply
   72,598.13x = 109,991.53 × 109,991.53
4. Step 4: Simplify right side
   72,598.13x = 12,098,136,946.72
5. Step 5: Solve for x
   x = 12,098,136,946.72/72,598.13
6. Step 6: Final answer
   x = 166,645.31