Finding the Third Proportional to 87,488,838 and 191,455,020

Step by Step Solution

1. Step 1: Write the proportion equation
   87,488,838 : 191,455,020 = 191,455,020 : x
2. Step 2: Convert to fraction form
   87,488,838/191,455,020 = 191,455,020/x
3. Step 3: Cross multiply
   87,488,838x = 191,455,020 × 191,455,020
4. Step 4: Simplify right side
   87,488,838x = 36,655,024,683,200,400
5. Step 5: Solve for x
   x = 36,655,024,683,200,400/87,488,838
6. Step 6: Final answer
   x = 418,968,013.76