Finding the Third Proportional to 69,430.50 and 105,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,430.50 : 105,118.50 = 105,118.50 : x
2. Step 2: Convert to fraction form
   69,430.50/105,118.50 = 105,118.50/x
3. Step 3: Cross multiply
   69,430.50x = 105,118.50 × 105,118.50
4. Step 4: Simplify right side
   69,430.50x = 11,049,899,042.25
5. Step 5: Solve for x
   x = 11,049,899,042.25/69,430.50
6. Step 6: Final answer
   x = 159,150.50