Finding the Third Proportional to 34,427 and 72,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   34,427 : 72,989.50 = 72,989.50 : x
2. Step 2: Convert to fraction form
   34,427/72,989.50 = 72,989.50/x
3. Step 3: Cross multiply
   34,427x = 72,989.50 × 72,989.50
4. Step 4: Simplify right side
   34,427x = 5,327,467,110.25
5. Step 5: Solve for x
   x = 5,327,467,110.25/34,427
6. Step 6: Final answer
   x = 154,746.77