Finding the Third Proportional to 112,900.50 and 243,621

Step by Step Solution

1. Step 1: Write the proportion equation
   112,900.50 : 243,621 = 243,621 : x
2. Step 2: Convert to fraction form
   112,900.50/243,621 = 243,621/x
3. Step 3: Cross multiply
   112,900.50x = 243,621 × 243,621
4. Step 4: Simplify right side
   112,900.50x = 59,351,191,641
5. Step 5: Solve for x
   x = 59,351,191,641/112,900.50
6. Step 6: Final answer
   x = 525,694.67