Finding the Third Proportional to 45,438.75 and 64,613.25

Step by Step Solution

1. Step 1: Write the proportion equation
   45,438.75 : 64,613.25 = 64,613.25 : x
2. Step 2: Convert to fraction form
   45,438.75/64,613.25 = 64,613.25/x
3. Step 3: Cross multiply
   45,438.75x = 64,613.25 × 64,613.25
4. Step 4: Simplify right side
   45,438.75x = 4,174,872,075.56
5. Step 5: Solve for x
   x = 4,174,872,075.56/45,438.75
6. Step 6: Final answer
   x = 91,879.11