Finding the Third Proportional to 87,310,842 and 145,509,300

Step by Step Solution

1. Step 1: Write the proportion equation
   87,310,842 : 145,509,300 = 145,509,300 : x
2. Step 2: Convert to fraction form
   87,310,842/145,509,300 = 145,509,300/x
3. Step 3: Cross multiply
   87,310,842x = 145,509,300 × 145,509,300
4. Step 4: Simplify right side
   87,310,842x = 21,172,956,386,490,000
5. Step 5: Solve for x
   x = 21,172,956,386,490,000/87,310,842
6. Step 6: Final answer
   x = 242,500,884.21