Finding the Third Proportional to 61,920.50 and 98,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   61,920.50 : 98,405.50 = 98,405.50 : x
2. Step 2: Convert to fraction form
   61,920.50/98,405.50 = 98,405.50/x
3. Step 3: Cross multiply
   61,920.50x = 98,405.50 × 98,405.50
4. Step 4: Simplify right side
   61,920.50x = 9,683,642,430.25
5. Step 5: Solve for x
   x = 9,683,642,430.25/61,920.50
6. Step 6: Final answer
   x = 156,388.31