Finding the Third Proportional to 69,549.50 and 109,098.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,549.50 : 109,098.50 = 109,098.50 : x
2. Step 2: Convert to fraction form
   69,549.50/109,098.50 = 109,098.50/x
3. Step 3: Cross multiply
   69,549.50x = 109,098.50 × 109,098.50
4. Step 4: Simplify right side
   69,549.50x = 11,902,482,702.25
5. Step 5: Solve for x
   x = 11,902,482,702.25/69,549.50
6. Step 6: Final answer
   x = 171,136.86