Finding the Third Proportional to 69,892.88 and 149,581.69

Step by Step Solution

1. Step 1: Write the proportion equation
   69,892.88 : 149,581.69 = 149,581.69 : x
2. Step 2: Convert to fraction form
   69,892.88/149,581.69 = 149,581.69/x
3. Step 3: Cross multiply
   69,892.88x = 149,581.69 × 149,581.69
4. Step 4: Simplify right side
   69,892.88x = 22,374,681,235.35
5. Step 5: Solve for x
   x = 22,374,681,235.35/69,892.88
6. Step 6: Final answer
   x = 320,128.21