Finding the Third Proportional to 66,909.75 and 97,852.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,909.75 : 97,852.50 = 97,852.50 : x
2. Step 2: Convert to fraction form
   66,909.75/97,852.50 = 97,852.50/x
3. Step 3: Cross multiply
   66,909.75x = 97,852.50 × 97,852.50
4. Step 4: Simplify right side
   66,909.75x = 9,575,111,756.25
5. Step 5: Solve for x
   x = 9,575,111,756.25/66,909.75
6. Step 6: Final answer
   x = 143,104.88