Finding the Third Proportional to 17,938,684 and 38,269,140

Step by Step Solution

1. Step 1: Write the proportion equation
   17,938,684 : 38,269,140 = 38,269,140 : x
2. Step 2: Convert to fraction form
   17,938,684/38,269,140 = 38,269,140/x
3. Step 3: Cross multiply
   17,938,684x = 38,269,140 × 38,269,140
4. Step 4: Simplify right side
   17,938,684x = 1,464,527,076,339,600
5. Step 5: Solve for x
   x = 1,464,527,076,339,600/17,938,684
6. Step 6: Final answer
   x = 81,640,719.93