Finding the Third Proportional to 19,943,820 and 42,866,970

Step by Step Solution

1. Step 1: Write the proportion equation
   19,943,820 : 42,866,970 = 42,866,970 : x
2. Step 2: Convert to fraction form
   19,943,820/42,866,970 = 42,866,970/x
3. Step 3: Cross multiply
   19,943,820x = 42,866,970 × 42,866,970
4. Step 4: Simplify right side
   19,943,820x = 1,837,577,116,980,900
5. Step 5: Solve for x
   x = 1,837,577,116,980,900/19,943,820
6. Step 6: Final answer
   x = 92,137,670.57