Finding the Third Proportional to 1,611,199.50 and 3,509,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611,199.50 : 3,509,989.50 = 3,509,989.50 : x
2. Step 2: Convert to fraction form
   1,611,199.50/3,509,989.50 = 3,509,989.50/x
3. Step 3: Cross multiply
   1,611,199.50x = 3,509,989.50 × 3,509,989.50
4. Step 4: Simplify right side
   1,611,199.50x = 12,320,026,290,110.25
5. Step 5: Solve for x
   x = 12,320,026,290,110.25/1,611,199.50
6. Step 6: Final answer
   x = 7,646,493.37