Finding the Third Proportional to 615,435 and 1,293,072

Step by Step Solution

1. Step 1: Write the proportion equation
   615,435 : 1,293,072 = 1,293,072 : x
2. Step 2: Convert to fraction form
   615,435/1,293,072 = 1,293,072/x
3. Step 3: Cross multiply
   615,435x = 1,293,072 × 1,293,072
4. Step 4: Simplify right side
   615,435x = 1,672,035,197,184
5. Step 5: Solve for x
   x = 1,672,035,197,184/615,435
6. Step 6: Final answer
   x = 2,716,834.75