Finding the Third Proportional to 69,430.50 and 98,313.75

Step by Step Solution

1. Step 1: Write the proportion equation
   69,430.50 : 98,313.75 = 98,313.75 : x
2. Step 2: Convert to fraction form
   69,430.50/98,313.75 = 98,313.75/x
3. Step 3: Cross multiply
   69,430.50x = 98,313.75 × 98,313.75
4. Step 4: Simplify right side
   69,430.50x = 9,665,593,439.06
5. Step 5: Solve for x
   x = 9,665,593,439.06/69,430.50
6. Step 6: Final answer
   x = 139,212.50