Finding the Third Proportional to 88,688 and 130,438.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,688 : 130,438.50 = 130,438.50 : x
2. Step 2: Convert to fraction form
   88,688/130,438.50 = 130,438.50/x
3. Step 3: Cross multiply
   88,688x = 130,438.50 × 130,438.50
4. Step 4: Simplify right side
   88,688x = 17,014,202,282.25
5. Step 5: Solve for x
   x = 17,014,202,282.25/88,688
6. Step 6: Final answer
   x = 191,843.34