Finding the Third Proportional to 45,878 and 64,604.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,878 : 64,604.50 = 64,604.50 : x
2. Step 2: Convert to fraction form
   45,878/64,604.50 = 64,604.50/x
3. Step 3: Cross multiply
   45,878x = 64,604.50 × 64,604.50
4. Step 4: Simplify right side
   45,878x = 4,173,741,420.25
5. Step 5: Solve for x
   x = 4,173,741,420.25/45,878
6. Step 6: Final answer
   x = 90,974.79