Finding the Third Proportional to 40,405,680 and 88,369,488

Step by Step Solution

1. Step 1: Write the proportion equation
   40,405,680 : 88,369,488 = 88,369,488 : x
2. Step 2: Convert to fraction form
   40,405,680/88,369,488 = 88,369,488/x
3. Step 3: Cross multiply
   40,405,680x = 88,369,488 × 88,369,488
4. Step 4: Simplify right side
   40,405,680x = 7,809,166,409,382,144
5. Step 5: Solve for x
   x = 7,809,166,409,382,144/40,405,680
6. Step 6: Final answer
   x = 193,269,025.78