Finding the Third Proportional to 1,031,428.69 and 1,400,765.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031,428.69 : 1,400,765.91 = 1,400,765.91 : x
2. Step 2: Convert to fraction form
   1,031,428.69/1,400,765.91 = 1,400,765.91/x
3. Step 3: Cross multiply
   1,031,428.69x = 1,400,765.91 × 1,400,765.91
4. Step 4: Simplify right side
   1,031,428.69x = 1,962,145,124,112.38
5. Step 5: Solve for x
   x = 1,962,145,124,112.38/1,031,428.69
6. Step 6: Final answer
   x = 1,902,356.55