Finding the Third Proportional to 2,918,430 and 4,662,210

Step by Step Solution

1. Step 1: Write the proportion equation
   2,918,430 : 4,662,210 = 4,662,210 : x
2. Step 2: Convert to fraction form
   2,918,430/4,662,210 = 4,662,210/x
3. Step 3: Cross multiply
   2,918,430x = 4,662,210 × 4,662,210
4. Step 4: Simplify right side
   2,918,430x = 21,736,202,084,100
5. Step 5: Solve for x
   x = 21,736,202,084,100/2,918,430
6. Step 6: Final answer
   x = 7,447,909.35