Finding the Third Proportional to 916,242 and 1,398,055.50

Step by Step Solution

1. Step 1: Write the proportion equation
   916,242 : 1,398,055.50 = 1,398,055.50 : x
2. Step 2: Convert to fraction form
   916,242/1,398,055.50 = 1,398,055.50/x
3. Step 3: Cross multiply
   916,242x = 1,398,055.50 × 1,398,055.50
4. Step 4: Simplify right side
   916,242x = 1,954,559,181,080.25
5. Step 5: Solve for x
   x = 1,954,559,181,080.25/916,242
6. Step 6: Final answer
   x = 2,133,234.65