Finding the Third Proportional to 86,483.81 and 189,994.31

Step by Step Solution

1. Step 1: Write the proportion equation
   86,483.81 : 189,994.31 = 189,994.31 : x
2. Step 2: Convert to fraction form
   86,483.81/189,994.31 = 189,994.31/x
3. Step 3: Cross multiply
   86,483.81x = 189,994.31 × 189,994.31
4. Step 4: Simplify right side
   86,483.81x = 36,097,838,782.35
5. Step 5: Solve for x
   x = 36,097,838,782.35/86,483.81
6. Step 6: Final answer
   x = 417,394.17