Finding the Third Proportional to 488,390,657 and 1,047,679,189

Step by Step Solution

1. Step 1: Write the proportion equation
   488,390,657 : 1,047,679,189 = 1,047,679,189 : x
2. Step 2: Convert to fraction form
   488,390,657/1,047,679,189 = 1,047,679,189/x
3. Step 3: Cross multiply
   488,390,657x = 1,047,679,189 × 1,047,679,189
4. Step 4: Simplify right side
   488,390,657x = 1,097,631,683,063,697,664
5. Step 5: Solve for x
   x = 1,097,631,683,063,697,664/488,390,657
6. Step 6: Final answer
   x = 2,247,446,111.70