Finding the Third Proportional to 1,291,111.50 and 1,992,216

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,111.50 : 1,992,216 = 1,992,216 : x
2. Step 2: Convert to fraction form
   1,291,111.50/1,992,216 = 1,992,216/x
3. Step 3: Cross multiply
   1,291,111.50x = 1,992,216 × 1,992,216
4. Step 4: Simplify right side
   1,291,111.50x = 3,968,924,590,656
5. Step 5: Solve for x
   x = 3,968,924,590,656/1,291,111.50
6. Step 6: Final answer
   x = 3,074,037.05