Finding the Third Proportional to 76,899.75 and 116,374.50

Step by Step Solution

1. Step 1: Write the proportion equation
   76,899.75 : 116,374.50 = 116,374.50 : x
2. Step 2: Convert to fraction form
   76,899.75/116,374.50 = 116,374.50/x
3. Step 3: Cross multiply
   76,899.75x = 116,374.50 × 116,374.50
4. Step 4: Simplify right side
   76,899.75x = 13,543,024,250.25
5. Step 5: Solve for x
   x = 13,543,024,250.25/76,899.75
6. Step 6: Final answer
   x = 176,112.72