Finding the Third Proportional to 99,076.50 and 207,994.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,076.50 : 207,994.50 = 207,994.50 : x
2. Step 2: Convert to fraction form
   99,076.50/207,994.50 = 207,994.50/x
3. Step 3: Cross multiply
   99,076.50x = 207,994.50 × 207,994.50
4. Step 4: Simplify right side
   99,076.50x = 43,261,712,030.25
5. Step 5: Solve for x
   x = 43,261,712,030.25/99,076.50
6. Step 6: Final answer
   x = 436,649.58