Finding the Third Proportional to 513,558 and 1,113,840

Step by Step Solution

1. Step 1: Write the proportion equation
   513,558 : 1,113,840 = 1,113,840 : x
2. Step 2: Convert to fraction form
   513,558/1,113,840 = 1,113,840/x
3. Step 3: Cross multiply
   513,558x = 1,113,840 × 1,113,840
4. Step 4: Simplify right side
   513,558x = 1,240,639,545,600
5. Step 5: Solve for x
   x = 1,240,639,545,600/513,558
6. Step 6: Final answer
   x = 2,415,772.99