Finding the Third Proportional to 721,284 and 1,558,182

Step by Step Solution

1. Step 1: Write the proportion equation
   721,284 : 1,558,182 = 1,558,182 : x
2. Step 2: Convert to fraction form
   721,284/1,558,182 = 1,558,182/x
3. Step 3: Cross multiply
   721,284x = 1,558,182 × 1,558,182
4. Step 4: Simplify right side
   721,284x = 2,427,931,145,124
5. Step 5: Solve for x
   x = 2,427,931,145,124/721,284
6. Step 6: Final answer
   x = 3,366,123.67