Finding the Third Proportional to 69,210.56 and 98,970.38

Step by Step Solution

1. Step 1: Write the proportion equation
   69,210.56 : 98,970.38 = 98,970.38 : x
2. Step 2: Convert to fraction form
   69,210.56/98,970.38 = 98,970.38/x
3. Step 3: Cross multiply
   69,210.56x = 98,970.38 × 98,970.38
4. Step 4: Simplify right side
   69,210.56x = 9,795,135,127.64
5. Step 5: Solve for x
   x = 9,795,135,127.64/69,210.56
6. Step 6: Final answer
   x = 141,526.59