Finding the Third Proportional to 849,145.50 and 1,238,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   849,145.50 : 1,238,719.50 = 1,238,719.50 : x
2. Step 2: Convert to fraction form
   849,145.50/1,238,719.50 = 1,238,719.50/x
3. Step 3: Cross multiply
   849,145.50x = 1,238,719.50 × 1,238,719.50
4. Step 4: Simplify right side
   849,145.50x = 1,534,425,999,680.25
5. Step 5: Solve for x
   x = 1,534,425,999,680.25/849,145.50
6. Step 6: Final answer
   x = 1,807,023.65