Finding the Third Proportional to 70,809 and 149,819.25

Step by Step Solution

1. Step 1: Write the proportion equation
   70,809 : 149,819.25 = 149,819.25 : x
2. Step 2: Convert to fraction form
   70,809/149,819.25 = 149,819.25/x
3. Step 3: Cross multiply
   70,809x = 149,819.25 × 149,819.25
4. Step 4: Simplify right side
   70,809x = 22,445,807,670.56
5. Step 5: Solve for x
   x = 22,445,807,670.56/70,809
6. Step 6: Final answer
   x = 316,990.89