Finding the Third Proportional to 69,070 and 103,178.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,070 : 103,178.50 = 103,178.50 : x
2. Step 2: Convert to fraction form
   69,070/103,178.50 = 103,178.50/x
3. Step 3: Cross multiply
   69,070x = 103,178.50 × 103,178.50
4. Step 4: Simplify right side
   69,070x = 10,645,802,862.25
5. Step 5: Solve for x
   x = 10,645,802,862.25/69,070
6. Step 6: Final answer
   x = 154,130.63