Finding the Third Proportional to 681,487 and 1,069,113

Step by Step Solution

1. Step 1: Write the proportion equation
   681,487 : 1,069,113 = 1,069,113 : x
2. Step 2: Convert to fraction form
   681,487/1,069,113 = 1,069,113/x
3. Step 3: Cross multiply
   681,487x = 1,069,113 × 1,069,113
4. Step 4: Simplify right side
   681,487x = 1,143,002,606,769
5. Step 5: Solve for x
   x = 1,143,002,606,769/681,487
6. Step 6: Final answer
   x = 1,677,218.50