Finding the Third Proportional to 34,471.13 and 72,420.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,471.13 : 72,420.75 = 72,420.75 : x
2. Step 2: Convert to fraction form
   34,471.13/72,420.75 = 72,420.75/x
3. Step 3: Cross multiply
   34,471.13x = 72,420.75 × 72,420.75
4. Step 4: Simplify right side
   34,471.13x = 5,244,765,030.56
5. Step 5: Solve for x
   x = 5,244,765,030.56/34,471.13
6. Step 6: Final answer
   x = 152,149.52