Finding the Third Proportional to 39,994.31 and 87,521.63

Step by Step Solution

1. Step 1: Write the proportion equation
   39,994.31 : 87,521.63 = 87,521.63 : x
2. Step 2: Convert to fraction form
   39,994.31/87,521.63 = 87,521.63/x
3. Step 3: Cross multiply
   39,994.31x = 87,521.63 × 87,521.63
4. Step 4: Simplify right side
   39,994.31x = 7,660,034,842.64
5. Step 5: Solve for x
   x = 7,660,034,842.64/39,994.31
6. Step 6: Final answer
   x = 191,528.10