Finding the Third Proportional to 89,312.50 and 190,907

Step by Step Solution

1. Step 1: Write the proportion equation
   89,312.50 : 190,907 = 190,907 : x
2. Step 2: Convert to fraction form
   89,312.50/190,907 = 190,907/x
3. Step 3: Cross multiply
   89,312.50x = 190,907 × 190,907
4. Step 4: Simplify right side
   89,312.50x = 36,445,482,649
5. Step 5: Solve for x
   x = 36,445,482,649/89,312.50
6. Step 6: Final answer
   x = 408,066.99