Finding the Third Proportional to 36,311,880 and 78,362,142

Step by Step Solution

1. Step 1: Write the proportion equation
   36,311,880 : 78,362,142 = 78,362,142 : x
2. Step 2: Convert to fraction form
   36,311,880/78,362,142 = 78,362,142/x
3. Step 3: Cross multiply
   36,311,880x = 78,362,142 × 78,362,142
4. Step 4: Simplify right side
   36,311,880x = 6,140,625,298,828,164
5. Step 5: Solve for x
   x = 6,140,625,298,828,164/36,311,880
6. Step 6: Final answer
   x = 169,107,886.97