Finding the Third Proportional to 561,196 and 1,217,528

Step by Step Solution

1. Step 1: Write the proportion equation
   561,196 : 1,217,528 = 1,217,528 : x
2. Step 2: Convert to fraction form
   561,196/1,217,528 = 1,217,528/x
3. Step 3: Cross multiply
   561,196x = 1,217,528 × 1,217,528
4. Step 4: Simplify right side
   561,196x = 1,482,374,430,784
5. Step 5: Solve for x
   x = 1,482,374,430,784/561,196
6. Step 6: Final answer
   x = 2,641,455.80