Finding the Third Proportional to 249,914,948,394 and 380,719,602,111

Step by Step Solution

1. Step 1: Write the proportion equation
   249,914,948,394 : 380,719,602,111 = 380,719,602,111 : x
2. Step 2: Convert to fraction form
   249,914,948,394/380,719,602,111 = 380,719,602,111/x
3. Step 3: Cross multiply
   249,914,948,394x = 380,719,602,111 × 380,719,602,111
4. Step 4: Simplify right side
   249,914,948,394x = 144,947,415,431,558,151,012,352
5. Step 5: Solve for x
   x = 144,947,415,431,558,151,012,352/249,914,948,394
6. Step 6: Final answer
   x = 579,986,977,021.65