Finding the Third Proportional to 40,518,638 and 88,721,746

Step by Step Solution

1. Step 1: Write the proportion equation
   40,518,638 : 88,721,746 = 88,721,746 : x
2. Step 2: Convert to fraction form
   40,518,638/88,721,746 = 88,721,746/x
3. Step 3: Cross multiply
   40,518,638x = 88,721,746 × 88,721,746
4. Step 4: Simplify right side
   40,518,638x = 7,871,548,213,288,516
5. Step 5: Solve for x
   x = 7,871,548,213,288,516/40,518,638
6. Step 6: Final answer
   x = 194,269,812.65