Finding the Third Proportional to 36,316.78 and 78,468.94

Step by Step Solution

1. Step 1: Write the proportion equation
   36,316.78 : 78,468.94 = 78,468.94 : x
2. Step 2: Convert to fraction form
   36,316.78/78,468.94 = 78,468.94/x
3. Step 3: Cross multiply
   36,316.78x = 78,468.94 × 78,468.94
4. Step 4: Simplify right side
   36,316.78x = 6,157,374,152.38
5. Step 5: Solve for x
   x = 6,157,374,152.38/36,316.78
6. Step 6: Final answer
   x = 169,546.25