Finding the Third Proportional to 607,620 and 1,329,600

Step by Step Solution

1. Step 1: Write the proportion equation
   607,620 : 1,329,600 = 1,329,600 : x
2. Step 2: Convert to fraction form
   607,620/1,329,600 = 1,329,600/x
3. Step 3: Cross multiply
   607,620x = 1,329,600 × 1,329,600
4. Step 4: Simplify right side
   607,620x = 1,767,836,160,000
5. Step 5: Solve for x
   x = 1,767,836,160,000/607,620
6. Step 6: Final answer
   x = 2,909,443.67