Finding the Third Proportional to 699,172 and 1,069,134

Step by Step Solution

1. Step 1: Write the proportion equation
   699,172 : 1,069,134 = 1,069,134 : x
2. Step 2: Convert to fraction form
   699,172/1,069,134 = 1,069,134/x
3. Step 3: Cross multiply
   699,172x = 1,069,134 × 1,069,134
4. Step 4: Simplify right side
   699,172x = 1,143,047,509,956
5. Step 5: Solve for x
   x = 1,143,047,509,956/699,172
6. Step 6: Final answer
   x = 1,634,858.82