Finding the Third Proportional to 42,381,440 and 91,537,072

Step by Step Solution

1. Step 1: Write the proportion equation
   42,381,440 : 91,537,072 = 91,537,072 : x
2. Step 2: Convert to fraction form
   42,381,440/91,537,072 = 91,537,072/x
3. Step 3: Cross multiply
   42,381,440x = 91,537,072 × 91,537,072
4. Step 4: Simplify right side
   42,381,440x = 8,379,035,550,333,184
5. Step 5: Solve for x
   x = 8,379,035,550,333,184/42,381,440
6. Step 6: Final answer
   x = 197,705,305.68