Finding the Third Proportional to 45,392 and 99,742.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,392 : 99,742.50 = 99,742.50 : x
2. Step 2: Convert to fraction form
   45,392/99,742.50 = 99,742.50/x
3. Step 3: Cross multiply
   45,392x = 99,742.50 × 99,742.50
4. Step 4: Simplify right side
   45,392x = 9,948,566,306.25
5. Step 5: Solve for x
   x = 9,948,566,306.25/45,392
6. Step 6: Final answer
   x = 219,170.04