Finding the Third Proportional to 661,156 and 1,357,160

Step by Step Solution

1. Step 1: Write the proportion equation
   661,156 : 1,357,160 = 1,357,160 : x
2. Step 2: Convert to fraction form
   661,156/1,357,160 = 1,357,160/x
3. Step 3: Cross multiply
   661,156x = 1,357,160 × 1,357,160
4. Step 4: Simplify right side
   661,156x = 1,841,883,265,600
5. Step 5: Solve for x
   x = 1,841,883,265,600/661,156
6. Step 6: Final answer
   x = 2,785,852.76