Finding the Third Proportional to 35,698.50 and 77,750.50

Step by Step Solution

1. Step 1: Write the proportion equation
   35,698.50 : 77,750.50 = 77,750.50 : x
2. Step 2: Convert to fraction form
   35,698.50/77,750.50 = 77,750.50/x
3. Step 3: Cross multiply
   35,698.50x = 77,750.50 × 77,750.50
4. Step 4: Simplify right side
   35,698.50x = 6,045,140,250.25
5. Step 5: Solve for x
   x = 6,045,140,250.25/35,698.50
6. Step 6: Final answer
   x = 169,338.77