Finding the Third Proportional to 739,078.50 and 1,111,912.50

Step by Step Solution

1. Step 1: Write the proportion equation
   739,078.50 : 1,111,912.50 = 1,111,912.50 : x
2. Step 2: Convert to fraction form
   739,078.50/1,111,912.50 = 1,111,912.50/x
3. Step 3: Cross multiply
   739,078.50x = 1,111,912.50 × 1,111,912.50
4. Step 4: Simplify right side
   739,078.50x = 1,236,349,407,656.25
5. Step 5: Solve for x
   x = 1,236,349,407,656.25/739,078.50
6. Step 6: Final answer
   x = 1,672,825.56