Finding the Third Proportional to 118,074,228 and 243,693,789

Step by Step Solution

1. Step 1: Write the proportion equation
   118,074,228 : 243,693,789 = 243,693,789 : x
2. Step 2: Convert to fraction form
   118,074,228/243,693,789 = 243,693,789/x
3. Step 3: Cross multiply
   118,074,228x = 243,693,789 × 243,693,789
4. Step 4: Simplify right side
   118,074,228x = 59,386,662,797,176,520
5. Step 5: Solve for x
   x = 59,386,662,797,176,520/118,074,228
6. Step 6: Final answer
   x = 502,960,415.69