Finding the Third Proportional to 258,875,410.50 and 556,172,032.50

Step by Step Solution

1. Step 1: Write the proportion equation
   258,875,410.50 : 556,172,032.50 = 556,172,032.50 : x
2. Step 2: Convert to fraction form
   258,875,410.50/556,172,032.50 = 556,172,032.50/x
3. Step 3: Cross multiply
   258,875,410.50x = 556,172,032.50 × 556,172,032.50
4. Step 4: Simplify right side
   258,875,410.50x = 309,327,329,735,181,056
5. Step 5: Solve for x
   x = 309,327,329,735,181,056/258,875,410.50
6. Step 6: Final answer
   x = 1,194,888,804.38