Finding the Third Proportional to 2,870.02 and 4,390.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.02 : 4,390.03 = 4,390.03 : x
2. Step 2: Convert to fraction form
   2,870.02/4,390.03 = 4,390.03/x
3. Step 3: Cross multiply
   2,870.02x = 4,390.03 × 4,390.03
4. Step 4: Simplify right side
   2,870.02x = 19,272,374.38
5. Step 5: Solve for x
   x = 19,272,374.38/2,870.02
6. Step 6: Final answer
   x = 6,715.08