Finding the Third Proportional to 39,388.50 and 83,634.75

Step by Step Solution

1. Step 1: Write the proportion equation
   39,388.50 : 83,634.75 = 83,634.75 : x
2. Step 2: Convert to fraction form
   39,388.50/83,634.75 = 83,634.75/x
3. Step 3: Cross multiply
   39,388.50x = 83,634.75 × 83,634.75
4. Step 4: Simplify right side
   39,388.50x = 6,994,771,407.56
5. Step 5: Solve for x
   x = 6,994,771,407.56/39,388.50
6. Step 6: Final answer
   x = 177,584.10