Finding the Third Proportional to 18,402,138 and 27,861,111

Step by Step Solution

1. Step 1: Write the proportion equation
   18,402,138 : 27,861,111 = 27,861,111 : x
2. Step 2: Convert to fraction form
   18,402,138/27,861,111 = 27,861,111/x
3. Step 3: Cross multiply
   18,402,138x = 27,861,111 × 27,861,111
4. Step 4: Simplify right side
   18,402,138x = 776,241,506,154,321
5. Step 5: Solve for x
   x = 776,241,506,154,321/18,402,138
6. Step 6: Final answer
   x = 42,182,137.00