Finding the Third Proportional to 612,740 and 1,346,434

Step by Step Solution

1. Step 1: Write the proportion equation
   612,740 : 1,346,434 = 1,346,434 : x
2. Step 2: Convert to fraction form
   612,740/1,346,434 = 1,346,434/x
3. Step 3: Cross multiply
   612,740x = 1,346,434 × 1,346,434
4. Step 4: Simplify right side
   612,740x = 1,812,884,516,356
5. Step 5: Solve for x
   x = 1,812,884,516,356/612,740
6. Step 6: Final answer
   x = 2,958,652.15