Finding the Third Proportional to 60,345 and 90,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,345 : 90,400.50 = 90,400.50 : x
2. Step 2: Convert to fraction form
   60,345/90,400.50 = 90,400.50/x
3. Step 3: Cross multiply
   60,345x = 90,400.50 × 90,400.50
4. Step 4: Simplify right side
   60,345x = 8,172,250,400.25
5. Step 5: Solve for x
   x = 8,172,250,400.25/60,345
6. Step 6: Final answer
   x = 135,425.48