Finding the Third Proportional to 34,345.50 and 72,381

Step by Step Solution

1. Step 1: Write the proportion equation
   34,345.50 : 72,381 = 72,381 : x
2. Step 2: Convert to fraction form
   34,345.50/72,381 = 72,381/x
3. Step 3: Cross multiply
   34,345.50x = 72,381 × 72,381
4. Step 4: Simplify right side
   34,345.50x = 5,239,009,161
5. Step 5: Solve for x
   x = 5,239,009,161/34,345.50
6. Step 6: Final answer
   x = 152,538.44