Finding the Third Proportional to 43,272 and 90,911.25

Step by Step Solution

1. Step 1: Write the proportion equation
   43,272 : 90,911.25 = 90,911.25 : x
2. Step 2: Convert to fraction form
   43,272/90,911.25 = 90,911.25/x
3. Step 3: Cross multiply
   43,272x = 90,911.25 × 90,911.25
4. Step 4: Simplify right side
   43,272x = 8,264,855,376.56
5. Step 5: Solve for x
   x = 8,264,855,376.56/43,272
6. Step 6: Final answer
   x = 190,997.77