Finding the Third Proportional to 66,897.50 and 91,733.75

Step by Step Solution

1. Step 1: Write the proportion equation
   66,897.50 : 91,733.75 = 91,733.75 : x
2. Step 2: Convert to fraction form
   66,897.50/91,733.75 = 91,733.75/x
3. Step 3: Cross multiply
   66,897.50x = 91,733.75 × 91,733.75
4. Step 4: Simplify right side
   66,897.50x = 8,415,080,889.06
5. Step 5: Solve for x
   x = 8,415,080,889.06/66,897.50
6. Step 6: Final answer
   x = 125,790.66