Finding the Third Proportional to 45,987.75 and 81,051.89

Step by Step Solution

1. Step 1: Write the proportion equation
   45,987.75 : 81,051.89 = 81,051.89 : x
2. Step 2: Convert to fraction form
   45,987.75/81,051.89 = 81,051.89/x
3. Step 3: Cross multiply
   45,987.75x = 81,051.89 × 81,051.89
4. Step 4: Simplify right side
   45,987.75x = 6,569,408,973.89
5. Step 5: Solve for x
   x = 6,569,408,973.89/45,987.75
6. Step 6: Final answer
   x = 142,851.28