Finding the Third Proportional to 4,614,280 and 9,938,516

Step by Step Solution

1. Step 1: Write the proportion equation
   4,614,280 : 9,938,516 = 9,938,516 : x
2. Step 2: Convert to fraction form
   4,614,280/9,938,516 = 9,938,516/x
3. Step 3: Cross multiply
   4,614,280x = 9,938,516 × 9,938,516
4. Step 4: Simplify right side
   4,614,280x = 98,774,100,282,256
5. Step 5: Solve for x
   x = 98,774,100,282,256/4,614,280
6. Step 6: Final answer
   x = 21,406,178.27