Finding the Third Proportional to 586,111.50 and 913,410

Step by Step Solution

1. Step 1: Write the proportion equation
   586,111.50 : 913,410 = 913,410 : x
2. Step 2: Convert to fraction form
   586,111.50/913,410 = 913,410/x
3. Step 3: Cross multiply
   586,111.50x = 913,410 × 913,410
4. Step 4: Simplify right side
   586,111.50x = 834,317,828,100
5. Step 5: Solve for x
   x = 834,317,828,100/586,111.50
6. Step 6: Final answer
   x = 1,423,479.71