Finding the Third Proportional to 66,456 and 98,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,456 : 98,671.50 = 98,671.50 : x
2. Step 2: Convert to fraction form
   66,456/98,671.50 = 98,671.50/x
3. Step 3: Cross multiply
   66,456x = 98,671.50 × 98,671.50
4. Step 4: Simplify right side
   66,456x = 9,736,064,912.25
5. Step 5: Solve for x
   x = 9,736,064,912.25/66,456
6. Step 6: Final answer
   x = 146,503.93