Finding the Third Proportional to 918,172 and 1,425,156

Step by Step Solution

1. Step 1: Write the proportion equation
   918,172 : 1,425,156 = 1,425,156 : x
2. Step 2: Convert to fraction form
   918,172/1,425,156 = 1,425,156/x
3. Step 3: Cross multiply
   918,172x = 1,425,156 × 1,425,156
4. Step 4: Simplify right side
   918,172x = 2,031,069,624,336
5. Step 5: Solve for x
   x = 2,031,069,624,336/918,172
6. Step 6: Final answer
   x = 2,212,079.68