Finding the Third Proportional to 155,219,272 and 258,683,196

Step by Step Solution

1. Step 1: Write the proportion equation
   155,219,272 : 258,683,196 = 258,683,196 : x
2. Step 2: Convert to fraction form
   155,219,272/258,683,196 = 258,683,196/x
3. Step 3: Cross multiply
   155,219,272x = 258,683,196 × 258,683,196
4. Step 4: Simplify right side
   155,219,272x = 66,916,995,892,774,416
5. Step 5: Solve for x
   x = 66,916,995,892,774,416/155,219,272
6. Step 6: Final answer
   x = 431,112,677.12