Finding the Third Proportional to 661,154 and 1,357,156

Step by Step Solution

1. Step 1: Write the proportion equation
   661,154 : 1,357,156 = 1,357,156 : x
2. Step 2: Convert to fraction form
   661,154/1,357,156 = 1,357,156/x
3. Step 3: Cross multiply
   661,154x = 1,357,156 × 1,357,156
4. Step 4: Simplify right side
   661,154x = 1,841,872,408,336
5. Step 5: Solve for x
   x = 1,841,872,408,336/661,154
6. Step 6: Final answer
   x = 2,785,844.76