Finding the Third Proportional to 61,317 and 86,953.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,317 : 86,953.50 = 86,953.50 : x
2. Step 2: Convert to fraction form
   61,317/86,953.50 = 86,953.50/x
3. Step 3: Cross multiply
   61,317x = 86,953.50 × 86,953.50
4. Step 4: Simplify right side
   61,317x = 7,560,911,162.25
5. Step 5: Solve for x
   x = 7,560,911,162.25/61,317
6. Step 6: Final answer
   x = 123,308.56