Finding the Third Proportional to 58,916,212,438 and 129,238,907,085

Step by Step Solution

1. Step 1: Write the proportion equation
   58,916,212,438 : 129,238,907,085 = 129,238,907,085 : x
2. Step 2: Convert to fraction form
   58,916,212,438/129,238,907,085 = 129,238,907,085/x
3. Step 3: Cross multiply
   58,916,212,438x = 129,238,907,085 × 129,238,907,085
4. Step 4: Simplify right side
   58,916,212,438x = 16,702,695,104,525,262,389,248
5. Step 5: Solve for x
   x = 16,702,695,104,525,262,389,248/58,916,212,438
6. Step 6: Final answer
   x = 283,499,132,299.15