Finding the Third Proportional to 531,468 and 885,780

Step by Step Solution

1. Step 1: Write the proportion equation
   531,468 : 885,780 = 885,780 : x
2. Step 2: Convert to fraction form
   531,468/885,780 = 885,780/x
3. Step 3: Cross multiply
   531,468x = 885,780 × 885,780
4. Step 4: Simplify right side
   531,468x = 784,606,208,400
5. Step 5: Solve for x
   x = 784,606,208,400/531,468
6. Step 6: Final answer
   x = 1,476,300