Finding the Third Proportional to 133,770,042 and 206,742,456

Step by Step Solution

1. Step 1: Write the proportion equation
   133,770,042 : 206,742,456 = 206,742,456 : x
2. Step 2: Convert to fraction form
   133,770,042/206,742,456 = 206,742,456/x
3. Step 3: Cross multiply
   133,770,042x = 206,742,456 × 206,742,456
4. Step 4: Simplify right side
   133,770,042x = 42,742,443,112,911,936
5. Step 5: Solve for x
   x = 42,742,443,112,911,936/133,770,042
6. Step 6: Final answer
   x = 319,521,788.84