Finding the Third Proportional to 681,507 and 1,069,146

Step by Step Solution

1. Step 1: Write the proportion equation
   681,507 : 1,069,146 = 1,069,146 : x
2. Step 2: Convert to fraction form
   681,507/1,069,146 = 1,069,146/x
3. Step 3: Cross multiply
   681,507x = 1,069,146 × 1,069,146
4. Step 4: Simplify right side
   681,507x = 1,143,073,169,316
5. Step 5: Solve for x
   x = 1,143,073,169,316/681,507
6. Step 6: Final answer
   x = 1,677,272.82