Finding the Third Proportional to 37,715.75 and 78,531.88

Step by Step Solution

1. Step 1: Write the proportion equation
   37,715.75 : 78,531.88 = 78,531.88 : x
2. Step 2: Convert to fraction form
   37,715.75/78,531.88 = 78,531.88/x
3. Step 3: Cross multiply
   37,715.75x = 78,531.88 × 78,531.88
4. Step 4: Simplify right side
   37,715.75x = 6,167,255,391.02
5. Step 5: Solve for x
   x = 6,167,255,391.02/37,715.75
6. Step 6: Final answer
   x = 163,519.36